Xray X1 User manual

2
BEFORE YOU START
The X1 is a high-competition, high-quality, 1/10-scale Formula car intended for
persons aged 16 years and older with previous experience building and operating
RC model racing cars. This is not a toy; it is a precision racing model. This model
racing car is not intended for use by beginners, inexperienced customers, or
by children without direct supervision of a responsible, knowledgeable adult.
If you do not fulfill these requirements, please return the kit in unused and
unassembled form back to the shop where you have purchased it.
Before building and operating your X1, YOU MUST read through all of the
operating instructions and instruction manual and fully understand them to get
the maximum enjoyment and prevent unnecessary damage. Read carefully and
fully understand the instructions before beginning assembly.
Make sure you review this entire manual, download and use set-up book from the
web, and examine all details carefully. If for some reason you decide The X1 is
not what you wanted or expected, do not continue any further. Your hobby dealer
cannot accept your X1 kit for return or exchange after it has been partially or fully
assembled.
Contents of the box may differ from pictures. In line with our policy of continuous
product development, the exact specifications of the kit may vary without prior
notice.
SAFETY PRECAUTIONS
Contains:
LEAD (CAS 7439-92-1) ANTIMONY (CAS 7440-36-0)
WARNING: This product contains a chemical known to the state of California to
cause cancer and birth defects or other reproductive harm.
CAUTION: CANCER HAZARD
Contains lead, a listed carcinogen. Lead is harmful if ingested. Wash thoroughly
after using. DO NOT use product while eating, drinking or using tobacco
products. May cause chronic effects to gastrointestinal tract, CNS, kidneys, and
blood. MAY CAUSE BIRTH DEFECTS.
When building, using and/or operating this model always wear protective
glasses and gloves.
Take appropriate safety precautions prior to operating this model. You are
responsible for this model‘s assembly and safe operation! Please read the
instruction manual before building and operating this model and follow
all safety precautions. Always keep the instruction manual at hand for quick
reference, even after completing the assembly. Use only genuine and original
authentic XRAY parts for maximum performance. Using any third party parts on
this model will void guaranty immediately.
Improper operation may cause personal and/or property damage. XRAY and
its distributors have no control over damage resulting from shipping, improper
construction, or improper usage. XRAY assumes and accepts no responsibility for
personal and/or property damages resulting from the use of improper building
materials, equipment and operations. By purchasing any item produced by XRAY,
the buyer expressly warrants that he/she is in compliance with all applicable
federal, state and local laws and regulation regarding the purchase, ownership
and use of the item. The buyer expressly agrees to indemnify and hold harmless
XRAY for all claims resulting directly or indirectly from the purchase, ownership
or use of the product. By the act of assembling or operating this product, the
user accepts all resulting liability. If the buyer is not prepared to accept this
liability, then he/she should return this kit in new, unassembled, and unused
condition to the place of purchase.
IMPORTANT NOTES – GENERAL
• This product is not suitable for children under 16 years of age without the
direct supervision of a responsible and knowledgeable adult.
• Carefully read all manufacturers warnings and cautions for any parts used in
the construction and use of your model.
• Assemble this kit only in places away from the reach of very small children.
• First-time builders and users should seek advice from people who have
building experience in order to assemble the model correctly and to allow the
model to reach its performance potential.
• Exercise care when using tools and sharp instruments.
• Take care when building, as some parts may have sharp edges.
• Keep small parts out of reach of small children. Children must not be allowed
to put any parts in their mouth, or pull vinyl bag over their head.
• Read and follow instructions supplied with paints and/or cement, if used (not
included in kit).
• Immediately after using your model, do NOT touch equipment on the
model such as the motor and speed controller, because they generate high
temperatures. You may seriously burn yourself seriously touching them.
• Follow the operating instructions for the radio equipment at all times.
• Do not put fingers or any objects inside rotating and moving parts, as this
may cause damage or serious injury as your finger, hair, clothes, etc. may get
caught.
• Be sure that your operating frequency is clear before turning on or running
your model, and never share the same frequency with somebody else at the
same time. Ensure that others are aware of the operating frequency you are
using and when you are using it.
• Use a transmitter designed for ground use with RC cars. Make sure that no
one else is using the same frequency as yours in your operating area. Using
the same frequency at the same time, whether it is driving, flying or sailing,
can cause loss of control of the RC model, resulting in a serious accident.
• Always turn on your transmitter before you turn on the receiver in the car.
Always turn off the receiver before turning your transmitter off.
• Keep the wheels of the model off the ground when checking the operation of
the radio equipment.
• Disconnect the battery pack before storing your model.
• When learning to operate your model, go to an area that has no obstacles
that can damage your model if your model suffers a collision.
• Remove any sand, mud, dirt, grass or water before putting your model away.
• If the model behaves strangely, immediately stop the model, check and clear
the problem.
• To prevent any serious personal injury and/or damage to property, be
responsible when operating all remote controlled models.
• The model car is not intended for use on public places and roads or areas where
its operation can conflict with or disrupt pedestrian or vehicular traffic.
• Because the model car is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference can
cause momentary loss of control, always allow a safety margin in all directions
around the model in order to prevent collisions.
• Do not use your model:
- Near real cars, animals, or people that are unaware that an RC car is being
driven.
- In places where children and people gather
- In residential districts and parks
- In limited indoor spaces
- In wet conditions
- In the street
- In areas where loud noises can disturb others, such as hospitals and
residential areas.
- At night or anytime your line of sight to the model may be obstructed or
impaired in any way.
To prevent any serious personal injury and/or damage to property, please be
responsible when operating all remote controlled models.
Failure to follow these instructions will be considered as abuse and/or neglect.
CUSTOMER SUPPORT
XRAY Europe
K Vystavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
We have made every effort to make these instructions as easy to understand as possible.
However, if you have any difficulties, problems, or questions, please do not hesitate to
contact the XRAY support team at [e-mail]. Also, please visit our Web site
at www.teamxray.com to find the latest updates, set-up information, option parts, and
many other goodies. We pride ourselves on taking excellent care of our customers.
You can join thousands of XRAY fans and enthusiasts in our online community at:
www.teamxray.com
XRAY USA
RC America, 2030 Century Center Blvd #15
Irving, TX 75062
USA
Phone: [phone] * [phone]
Fax: [phone]
E-mail: [email protected]

3
IMPORTANT NOTES – ELECTRICAL
• Insulate any exposed electrical wiring (using heat shrink tubing or electrical
tape) to prevent dangerous short circuits. Take maximum care in wiring,
connecting and insulating cables. Make sure cables are always connected
securely. Check connectors for if they become loose. And if so, reconnect
them securely. Never use R/C models with damaged wires. A damaged wire
is extremely dangerous, and can cause short-circuits resulting in fire. Please
have wires repaired at your local hobby shop.
• Low battery power will result in loss of control. Loss of control can occur due to
a weak battery in either the transmitter or the receiver. Weak running battery
may also result in an out of control car if your car‘s receiver power is supplied
by the running battery. Stop operation immediately if the car starts to slow
down.
• When not using RC model, always disconnect and remove battery.
• Do not disassemble battery or cut battery cables. If the running battery short-
circuits, approximately 300W of electricity can be discharged, leading to fire
or burns. Never disassemble battery or cut battery cables.
• Use a recommended charger for the receiver and transmitter batteries
and follow the instructions correctly. Over-charging, incorrect charging, or
using inferior chargers can cause the batteries to become dangerously hot.
Recharge battery when necessary. Continual recharging may damage battery
and, in the worst case, could build up heat leading to fire. If battery becomes
extremely hot during recharging, please ask your local hobby shop for check
and/or repair and/or replacement.
• Regularly check the charger for potential hazards such as damage to the
cable, plug, casing or other defects. Ensure that any damage is rectified
before using the charger again. Modifying the charger may cause short-circuit
or overcharging leading to a serious accident. Therefore do not modify the
charger.
• Always unplug charger when recharging is finished.
• Do not recharge battery while battery is still warm. After use, battery retains
heat. Wait until it cools down before charging.
• Do not allow any metal part to short circuit the receiver batteries or other
electrical/electronic device on the model.
• Immediately stop running if your RC model gets wet as may cause short circuit.
• Please dispose of batteries responsibly. Never put batteries into fire.
WARRANTY
XRAY guarantees this model kit to be free from defects in both material and
workmanship within 30 days of purchase. The total monetary value under
warranty will in no case exceed the cost of the original kit purchased. This
warranty does not cover any components damaged by use or modification or
as a result of wear. Part or parts missing from this kit must be reported within
30 days of purchase. No part or parts will be sent under warranty without proof
of purchase. Should you find a defective or missing part, contact the local
distributor. Service and customer support will be provided through local hobby
store where you have purchased the kit, therefore make sure to purchase any
XRAY products at your local hobby store. This model racing car is considered
to be a high-performance racing vehicle. As such this vehicle will be used in
an extreme range of conditions and situations, all which may cause premature
wear or failure of any component. XRAY has no control over usage of vehicles
once they leave the dealer, therefore XRAY can only offer warranty against all
manufacturer‘s defects in materials, workmanship, and assembly at point of
sale and before use. No warranties are expressed or implied that cover damage
caused by what is considered normal use, or cover or imply how long any
model cars‘ components or electronic components will last before requiring
replacement.
Due to the high performance level of this model car you will need to periodically
maintain and replace consumable components. Any and all warranty coverage
will not cover replacement of any part or component damaged by neglect,
abuse, or improper or unreasonable use. This includes but is not limited to
damage from crashing, chemical and/or water damage, excessive moisture,
improper or no maintenance, or user modifications which compromise the
integrity of components. Warranty will not cover components that are considered
consumable on RC vehicles. XRAY does not pay nor refund shipping on any
component sent to XRAY or its distributors for warranty. XRAY reserves the right
to make the final determination of the warranty status of any component or part.
Limitations of Liability
XRAY makes no other warranties expressed or implied. XRAY shall not be liable
for any loss, injury or damages, whether direct, indirect, special, incidental, or
consequential, arising from the use, misuse, or abuse of this product and/or any
product or accessory required to operate this product. In no case shall XRAY‘s
liability excess the monetary value of this product.
Take adequate safety precautions prior to operating this model. You
are responsible for this model’s assembly and safe operation.
Disregard of the any of the above cautions may lead to accidents,
personal injury, or property damage. XRAY MODEL RACING CARS
assumes no responsibility for any injury, damage, or misuse of this
product during assembly or operation, nor any addictions that may
arise from the use of this product.
All rights reserved.
QUALITY CERTIFICATE
XRAY MODEL RACING CARS uses only the highest quality materials, the best
compounds for molded parts and the most sophisticated manufacturing processes
of TQM (Total Quality Management). We guarantee that all parts of a newly-
purchased kit are manufactured with the highest regard to quality. However, due
to the many factors inherent in model racecar competition, we cannot guarantee
any parts once you start racing the car. Products which have been worn out,
abused, neglected or improperly operated will not be covered under warranty.
We wish you enjoyment of this high-quality and high-performance RC car and
wish you best success on the track!
In line with our policy of continuous product development, the exact specifications of the kit may
vary. In the unlikely event of any problems with your new kit, you should contact the model shop
where you purchased it, quoting the part number.
We do reserve all rights to change any specification without prior notice. All rights reserved.
R/C & BUILDING TIPS
• Make sure all fasteners are properly tightened. Check them periodically.
• Make sure that chassis screws do not protrude from the chassis.
• For the best performance, it is very important that great care is taken to ensure
the free movement of all parts.
• Clean all ball-bearings so they move very easily and freely.
• Tap or pre-thread the plastic parts when threading screws.
• Self-tapping screws cut threads into the parts when being tightened. Do not use
excessive force when tightening the self-tapping screws because you may strip
out the thread in the plastic. We recommended you stop tightening a screw
when you feel some resistance.
• Ask your local hobby shop for any advice.
Please support your local hobby shop. We at XRAY Model Racing Cars support
all local hobby dealers. Therefore we ask you, if at all possible, to purchase
XRAY products at your hobby dealer and give them your support like we do. If
you have difficulty finding XRAY products, please check out www.teamxray.com
to get advice, or contact us via email at [e-mail], or contact the XRAY
distributor in your country.

4
NOT INCLUDED
XRAY offers wide range of optional tuning parts
which are listed in a table like this. Please refer
to the exploded view of each main section to verify
which part is included in the kit while all other parts
are available only as optional parts and must be
purchased separately.
SYMBOLS USED
L=R
2x
CA
OIL
CORRECT WRONG
Overtightened The threads
are stripped.
Part bags used Assemble left and
right sides the
same way
Assemble in the
specified order
Pay attention here Assemble as many
times as specified
(here twice)
Apply CA glue
TOOLS REQUIRED
EQUIPMENT REQUIRED
EQUIPMENT INCLUDED
Apply oil Use pliers
XRAY Premium Silicone
Oil 600cSt (#359260)
Oil 10000cSt (#359310)
Side Cutters
(HUDY #189010)
Hobby Knife Turnbuckle Wrench
4mm (HUDY #181040)
Reamer
(HUDY #107600)
or
(HUDY #107601)
Combination Pliers
(HUDY #189020)
HUDY TOOLS:
05
Tighten screw
gently
Cut off remaining
material
Detail view
Apply grease Ensure smooth
non-binding movement
Diff Grease
(HUDY #106211)
Assembly view
Scissors
(HUDY #188990)
4.0 mm
SAMPLE OF
OPTIONAL PARTS
#37XXXX OPTION 1
#37XXXX OPTION 2
#37XXXX OPTION 3
DETAIL
Socket: 7.0mmPhillips: 3.0mmAllen: 1.5mm Allen: 2.0mm Allen: 3.0mmAllen: 2.5mm
Pinion Gear and Setscrew
Transmitter Steering Servo Receiver Bearing Oil
(HUDY #106230)
Speed Controller
Electric Motor
Lexan™ Paint Battery Charger Wheels & Tires & Inserts
LiPo Battery Fibre Tape (HUDY #107870)
Double-sided Tape

5
CHASSIS PREPARATION
To protect and seal edges of graphite parts, sand edges smooth and then apply CA glue.
Do this for: chassis edges and countersunk holes.
Fine sandpaper
Use fine sandpaper to sand smooth
the edges of all graphite parts.
CA
CA
CA
CA
Apply only a bit of CA glue in the countersunk holes.
IMPORTANT
DETAIL
DETAIL

6
CHASSIS
#371003 2.5MM - GRAPHITE
#371004 2.0MM - ALU
#371005 2.0MM - GRAPHITE
FRONT COIL SPRINGS
#372176 C=1.5 - GOLD (SOFT)
#372177 C=2.0 - SILVER (SOFT)
#372178 C=2.5 - BLACK (SOFT)
#372179 C=3.0 - GREY (SOFT)
#372180 C=3.5 - GOLD
#372181 C=4.0 - SILVER
#372182 C=5.0 - BLACK
#372183 C=5.5 - GREY
372321
BAG
303123-O
303123-O
372212
902306
376230
376364-O
372320
372114
376258-O
902306
372320
373241
902310
371003
965019
373241
372290
962030
302652
372212
373242
372290
372321
902310
371063
376361-O
903308
901308
970050
970050
372132
970050
372281
372290
901304
375221
372180
965019
372320
372212
902306
30 3123-O ALU SHIM 3x6x2.0MM - ORANGE (10)
30 2652 BALL END 4.9MM WITH THREAD 4MM (2)
37 1003 X1 CHASSIS - 2.5MM GRAPHITE
37 1063 X1’16 ARM MOUNT PLATE - 2.5MM GRAPHITE
37 2114 X1 GRAPHITE LOWER SUSPENSION ARM 2.5MM
37 2132 X1 GRAPHITE UPPER SUSPENSION ARM 2.5MM
37 2180 FRONT COIL SPRING 3.6x6x0.5MM; C=3.5 - GOLD (2)
37 2212 X1 COMPOSITE STEERING BLOCK & BACKSTOPS
37 2281 X1 KING PIN (2)
37 2290 ALU SHIM 3.2x4.8x0.5 (4)
37 2320 X1 COMPOSITE ARM BUSHING (4)
37 2321 X1 COMPOSITE CASTER & CAMBER BUSHING (2+2+2+2)
37 3241 COMPOSITE PIVOTBALL UNIVERSAL 6.0 MM (2)
37 3242 COMPOSITE PIVOTBALL UNIVERSAL 6.0 MM - SHORT (2)
37 5221 X1 FRONT WHEEL AXLE - HUDY SPRING STEEL™ (2)
37 6230 X1’16 SERVO HOLDER - 2.5MM GRAPHITE
37 6258-O X1’16 ALU SERVO MOUNT - ORANGE
37 6361-O ALU MOUNT 26.5MM - ORANGE (2)
37 6364-O ALU MOUNT 10.8MM - ORANGE (2)
90 1304 HEX SCREW SB M3x4 (10)
90 1308 HEX SCREW SB M3x8 (10)
90 2306 HEX SCREW SH M3x6 (10)
90 2310 HEX SCREW SH M3x10 (10)
90 3308 HEX SCREW SFH M3x8 (10)
96 2030 WASHER S 3x6x0.3 (10)
96 5019 E-CLIP 1.9 (10)
97 0050 O-RING 5x1 (10)
1. FRONT SUSPENSION

7
970050
O 5x1
901308
SB M3x8
902306
SH M3x6
902306
SH M3x6
903308
SFH M3x8
303123-O
SHIM 3x6x2
1.5 mm
UPPER ARMS LOWER ARMS
LOWER ARMS
2x
The adjustable backstops are used to limit the steering angle.
Adjust the backstop with the set-screw to achieve the maximum
steering angle needed. Adjust the steering angle on both L & R
sides to the same amount.
BACKSTOP
STEERING ANGLE
The brace makes the car easier to drive. Recommended
for high-traction conditions.
These shims adjust the roll-center of the front bottom arm as
well as the front ride height. The thickness of the shim depends
on the tire diameter. For initial setting, use the 3x6x2mm shim.
IMPORTANT! Use the same shim thickness under all 4 posts.
3x6x2mm
3x6x2mm
#372087 - X1 GRAPHITE FRONT ARM BRACE 2.5mm
3x8
1.5 mm
DETAIL
NOTE ORIENTATION
DETAIL
CHASSIS
#371003 2.5MM - GRAPHITE
#371004 2.0MM - ALU
#371005 2.0MM - GRAPHITE
6x
6x
2x
2x 2x
2x
1. FRONT SUSPENSION
1. FRONT SUSPENSION
5mm
COMPOSITE BALL
Remove excess material
SHORT COMPOSITE BALL
CUTAWAY VIEW
CUTAWAY VIEW
DETAIL DETAIL
DETAIL
2MM CHASSIS - for low-traction conditions,
as it improves overall car traction.
ALU CHASSIS - makes the car more stable
and easier to drive in particular conditions.

8
1. FRONT SUSPENSION
962030
S 3x6x0.3
902310
SH M3x10
All four bushings MUST have same orientation.
These bushings adjust the front CAMBER:
These eccentric bushings adjust the front CAMBER.
The more camber angle, the more steering there is. However, it makes the car
more sensitive and more difficult to drive.
Use LESS camber angle for carpet and other high-traction tracks.
Use MORE camber on asphalt and low-traction tracks.
IMPORTANT!
= 1.0° CAMBER
= 1.5° CAMBER
= 2.0° CAMBER
= 2.5° CAMBER
ECCENTRIC
BUSHINGS
DETAIL
3x6x0.3mm
3x6x0.3mm
902310
SH M3x10
903308
SFH M3x8
303123-O
SHIM 3x6x2
DETAIL
ECCENTRIC
BUSHINGS
3x6x2mm
3x6x2mm
FREE
MOVEMENT
INITIAL SETTING
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
All three bushings MUST have same orientation.
These bushings adjust the front CASTER:
These eccentric bushings adjust the front CASTER.
MORE caster angle = better cornering speed, increased traction rolling.
Use on large, open tracks where cornering speed is needed.
LESS caster angle = more reactive steering. Use on technical tracks where
a lot of steering response is needed.
IMPORTANT!
= 3° CASTER
= 6° CASTER
= 9° CASTER
= 12° CASTER
INITIAL SETTING
902306
SH M3x6
#372327 - X1 ALU 1 DOT BUSHING - CASTER 6°, 9° (3)
#372328 - X1 ALU 2 DOT BUSHING - CASTER 3°, 12° (3)
#372325 - X1 ALU 1 DOT BUSHING - CAMBER 1.5°, 2.0° (2)
#372326 - X1 ALU 2 DOT BUSHING - CAMBER 1.0°, 2.5° (2)

9
1. FRONT SUSPENSION
901304
SB M3x4
372290
SHIM 3.2x4.8x0.5
965019
C 1.9
INNER position: improved steering response
OUTER position: easier to drive
There are two Ackermann
positions on the steering block:
After assembling the steering block, loosen the set-screw
slightly. Use your thumb to press down on the top of the
kingpin, then use your other fingers to pull up the steering
block. Then tighten the set-screw.
1.5 mm
DETAIL
TIGHTEN FULLY
TIGHTEN GENTLY
The number of the shims affects
the front ride height. Determine
the proper amount of shimming
based on tire diameter.
LOW traction & bumpy track:
10K cSt (#106510 HUDY)
HIGH traction & flat track:
30K cSt (#106530 HUDY)
FREE MOVEMENT
RECOMMENDED
HUDY SILICONE OIL
3.2x4.8x0.5mm (5x)
3.2x4.8x0.5mm (2x)
3.2x4.8x0.5mm (1x)
3.2x4.8x0.5mm (1x)
4mm THREAD
OIL
FRONT COIL SPRINGS
#372176 C=1.5 - GOLD (SOFT)
#372177 C=2.0 - SILVER (SOFT)
#372178 C=2.5 - BLACK (SOFT)
#372179 C=3.0 - GREY (SOFT)
#372180 C=3.5 - GOLD
#372181 C=4.0 - SILVER
#372182 C=5.0 - BLACK
#372183 C=5.5 - GREY
INITIAL SETTING
2x
2x
2x

10
371320
371320
371320
981210
902306
902306
903306
903308
371093
371075
902306
902306
960032
960032
373548
372650
378153
378141
372662
372650
902306
373031
371147
903306
902258
903310
373092
296530-O
373585
903306
373073-O
296530-O
296530-O
296530-O
373012
373022
903306
903308
378153
378141
372650
981210
372662
902306
303241
371190
373066
373092
373591
902308
903306
376361-O
901308
SIDE SPRINGS
#373584 C=0.6 - SILVER
#373585 C=0.9 - GOLD
#373586 C=1.2 - BLACK
#373587 C=1.5 - SILVER
#373588 C=1.8 - GOLD
REAR POD PLATES
#371147 2.5MM - GRAPHITE
#371148 2.0MM - ALU
#371149 2.0MM - GRAPHITE
2. REAR SUSPENSION
BAG
02
30 3241 PIVOT BALL UNIVERSAL 5.8 MM WITH HEX (4)
37 1075 X1’16 REAR BRACE - 2.5MM GRAPHITE
37 1093 X1’16 PLATE FOR MOUNTS - 2.5MM GRAPHITE
37 1147 X1 GRAPHITE 2.5MM REAR POD LOWER PLATE
37 1190 COMPOSITE POD LINK (2)
37 1320 COMPOSITE BODY POST (2)
37 2650 BALL-END 4.2MM - THREADED - HUDY SPRING STEEL™ (2)
37 2662 COMPOSITE BALL-JOINT 4.2 MM (4)
37 3012 X1 ALU REAR BULKHEAD - MOTOR (RIGHT)
37 3022 X1 ALU REAR BULKHEAD - LEFT
37 3031 X1 GRAPHITE REAR BULKHEAD BRACE
37 3066 ALU PIVOT BALL
37 3073-O ALU REAR BRACE MOUNT 13MM - ORANGE (2)
37 3092 COMPOSITE LOWER & UPPER PIVOT BRACE - LOW ROLL-CENTER
37 3548 X1’16 REAR POD UPPER PLATE - 2.5MM GRAPHITE
37 3585 SIDE SPRING C=0.9 - GOLD (2)
37 3591 COMPOSITE SIDE SPRING HOLDER (2)
37 6361-O ALU MOUNT 26.5MM - ORANGE (2)
37 8141 X1 SIDE LINKAGE TUBE (2)
37 8153 COMPOSITE LINKAGE SHAFT (2)
29 6530-O ALU NUT M3 - ORANGE (10)
90 1308 HEX SCREW SB M3x8 (10)
90 2258 HEX SCREW SH M2.5x8 (10)
90 2306 HEX SCREW SH M3x6 (10)
90 2308 HEX SCREW SH M3x8 (10)
90 3306 HEX SCREW SFH M3x6 (10)
90 3308 HEX SCREW SFH M3x8 (10)
90 3310 HEX SCREW SFH M3x10 (10)
96 0032 NUT M3 (10)
98 1210 PIN 2x10 (10)

11
902306
SH M3x6
903306
SFH M3x6
NOTE
ORIENTATION
Ensure free, smooth movement without
excessive freeplay.
Gently scuff the bottom of the composite lower pivot
brace on sandpaper to make the surface slightly
rough. This will help the lower pivot brace to grip the
chassis surface better.
DETAIL
Sandpaper Sandpaper
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
DO NOT TIGHTEN FULLY
902306
SH M3x6
296530-O
ALU N M3
903310
SFH M3x10
903306
SFH M3x6
When the optional 2MM GRAPHITE chassis is
used, the optional 2.0mm graphite rear pod plate
must be used as well.
When the optional ALU CHASSIS is used, the
optional 2.0 alu rear pod plate must be used as well.
REAR POD PLATES
#371147 2.5MM - GRAPHITE
#371148 2.0MM - ALU
#371149 2.0MM - GRAPHITE

12
296530-O
ALU N M3
902258
SH M2.5x8
Do not tighten fully,
pivotballs must turn freely.
901308
SB M3x8
902306
SH M3x6
903306
SFH M3x6
NOTE ORIENTATION
NOTE ORIENTATION
"CLICK"
2.0mm
903306
SFH M3x6
2x 2x
TIGHTEN FULLY
Make sure both side springs
are tightened equally, to avoid
unwanted tweak.
DETAIL
NOTE ORIENTATION
DETAIL
CA
DETAIL
SOFTER SPRINGS:
Makes the car easier to drive on
low-traction tracks but more difficult to drive
on high-traction tracks.
HARDER SPRINGS:
Improves steering response, but also
increases traction rolling.
2. REAR SUSPENSION
SIDE SPRINGS
#373584 C=0.6 - SILVER
#373585 C=0.9 - GOLD
#373586 C=1.2 - BLACK
#373587 C=1.5 - SILVER
#373588 C=1.8 - GOLD
IMPORTANT

13
296530-O
ALU N M3
960032
N M3
960032
N M3
902306
SH M3x6
902306
SH M3x6
903308
SFH M3x8
903308
SFH M3x8
3x6mm
3x8mm
3x8mm
3x8mm
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
903306
SFH M3x6
902308
SH M3x8
981210
P 2x10
2. REAR SUSPENSION

14
The angle of the side tubes has a fine effect on car performance.
The angle is adjusted with shims between the pivot ball and the rear
brace and/or upper plate.
The HIGHER the angle, the stiffer it feels and the less it rolls.
The LESS (flatter) the angle, the softer it feels and the more it rolls.
HUDY OILS
#106510 10000cSt
#106515 15000cSt
#106520 20000cSt
#106530 30000cSt
#106540 40000cSt
#106550 50000cSt
2x 2x
Add oil in each slot of the COMPOSITE side
shock tubes.
NOTE:
Add oil only in the slots, not on the whole tube.
After assembling the side tubes, check for smooth operation.
It is very important to re-oil the side tubes, at least once per race day.
You may use different oil thicknesses depending on track conditions.
OIL
For HIGH grip use SOFTER oils
For LOW grip or ASPHALT use HARDER oils
OPTIONAL SIDE SHOCK
#378100 - Optional side shock can be used to improve
traction in low- and medium-grip conditions.
The optional side shock REPLACES the 2 side tubes.
OPTIONAL PARTS (NOT INCLUDED)
#378100 Side Shock Absorber Set
#362650 Ball End 4.9mm with Thread 6mm (2)
#303123-O Alu Shim 3x6x2.0mm - Orange (10)
#372651 Ball Universal 4.9mm - HUDY Spring Steel™ (2)
#902308 Hex Screw SH M3x8 (10)
3x6x2mm
#362650
#378100
OPTIONAL SIDE SHOCK
#372651
3x6x2mm
3x8mm
2. REAR SUSPENSION

15
SPUR GEARS
#375876 76T / 64P
#375878 78T / 64P
#375880 80T / 64P
#375896 96T / 64P
0 2.02.5 1.5 1.0 0.5
These eccentric bushings adjust the RIDE HEIGHT of the rear pod.
Make sure to use the SAME eccentric bushings on BOTH sides.
INITIAL SETTING
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
OIL
OIL
FLANGED
FLANGED
951438
BB 1/4“x3/8“x1/8“
BAG
03
3. BALL DIFFERENTIAL
37 2070 COMPOSITE RIDE HEIGHT ADJUSTER SET - V2 (2)
37 5010 REAR AXLE SHAFT - GRAPHITE - V3 (OPTION)
37 5012 STEEL REAR AXLE SHAFT - HUDY SPRING STEEL™
37 5026 X1 ALU REAR DRIVE AXLE - RIGHT
37 5036 X1 ALU REAR WHEEL HUB - RIGHT
37 5046 X1 ALU REAR WHEEL HUB - LEFT
37 5050-O ALU DIFF HUB - ORANGE
37 5080 D-LOCK DIFF PLATE (2)
37 5090-O SET OF ALU SHIMS 6.37x8.4MM (0.5MM, 1.0MM, 2.0MM) - ORANGE
37 5896 COMPOSITE SPUR GEAR - 96T / 64P
29 6530-O ALU NUT M3 - ORANGE (10)
90 1304 HEX SCREW SB M3x4 (10)
90 8258 HEX SCREW SOCKET HEAD CAP M2.5x8 (10)
93 0130 CARBIDE BALL 3.175MM (12)
93 0138 CARBIDE BALL-BEARING AXIAL F3-8 3x8x3.5 - V2
93 0230 CERAMIC BALL 3.175MM (12) (OPTION)
93 0238 CERAMIC BALL-BEARING AXIAL F3-8 3x8x3.5 (OPTION)
94 1438 HIGH-SPEED BALL-BEARING 1/4”x3/8”x1/8” RUBBER SEALED (2)
95 1438 BALL-BEARING 1/4” x 3/8” x 1/8” FLANGED (2)
96 3030 CONE WASHER ST 3x8x0.5 (10)
98 1214 PIN 2x14 (10)
901304
296530-O
930138
941438
941438
930130
941438
375012
375090-O
375090-O
372070
375026
375050-O
981214 375036
375080
375080
951438
951438
908258 375046
375896
963030

16
DIFF GREASE
(HUDY #106211)
8.0mm 7.8mm
3.0mm
3.2mm
930138
BA 3x8
941438
BB 1/4“x3/8“x1/8“
930130
B 3.1
963030
ST 3x8
296530-O
ALU N M3
375090-O
SHIM 6.4x8.4x1.0
908258
SCH M2.5x8
901304
SB M3x4
981214
P 2x14
1.5 mm
DETAIL STEP
DETAIL
The axle must have a VERY small
amount of side play. If there is no
side play, the axle may bind and
damage the ball-bearings.
IMPORTANT
Use additional shims to widen the rear
track-width. Use the same shims on both sides.
For initial assembly use 6.4x8.4x1mm shims.
This nut affects the tightness and stiffness of the rear differential. Tighten the nut gently so the diff
does not slip under power, but do not overtighten or the diff balls and/or plates may be damaged.
DIFF
GREASE
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
OIL
OIL
NOTE
ORIENTATION
IMPORTANT
NOTE
ORIENTATION
Thread the set-screw
deep enough into the
wheel adaptor so it does
not protrude.
Tighten fully.
NOTE
ORIENTATION
NOTE
ORIENTATION
NOTE
ORIENTATION
DIFF GREASE
(HUDY #106211)
3. BALL DIFFERENTIAL
CUTAWAY VIEW
DETAIL
DETAIL

17
965023
C 2.3
970121
O 12.1x1.6
972030
O 3x2
SPRINGS
#308373 C = 2.2 (2)
#308374 C = 2.4 (2)
#308375 C = 2.6 (2)
#308376 C = 2.8 (2)
#308377 C = 3.0 (2)
#308378 C = 3.2 (2)
#308379 C = 3.4 (2)
➊
➋
SHOCK OIL
SHOCK OIL
SHOCK OIL
NOTE ORIENTATION
1.1mm
1.2mm
1.3mm
3 HOLE (1.2mm)
1mm
INCORRECT CORRECT
HINT: Pre-thread the ball joint
using an M3 screw. WARNING! Be
careful not to pre-thread too far,
since the ball joint may split or the
plastic threads may strip out.
1.1mm
1.2mm
1.3mm
INITIAL SETTING
SHOCK OIL
DETAIL
DETAIL
DETAIL
4. CENTER SHOCK
BAG
04
30 3241 PIVOT BALL UNIVERSAL 5.8 MM WITH HEX (4)
30 8036 COMPOSITE NON-ADJUSTABLE PISTONS - DELRIN - V3
30 8040-O SHOCK ADJ. NUT ALU + O-RING - ORANGE (4)
30 8081 SHOCK ABSORBER MEMBRANE - LOW (4
30 8091 SHOCK FOAM INSERT - LOW (4)
30 8316 SHOCK BALL JOINT - OPEN (4)
30 8322 ALU XRAY SHOCK BODY FOR #308306 (2)
30 8327-O ALU CAP FOR XRAY SHOCK BODY #308322 - ORANGE (2)
30 8331 COMPOSITE FRAME SHOCK PARTS 4-STEP - SHORT
30 8352-O ALU SHOCK CAP-NUT WITH VENT HOLE - ORANGE (2)
30 8363 HARDENED SHOCK SHAFT FOR ALU SHOCKS (2)
30 8373 XRAY SPRING-SET C=2.2 (2)
96 5023 E-CLIP 2.3 (10)
97 0121 O-RING 12.1 x 1.6 (10)
97 2030 SILICONE O-RING 3x2 (10)
308091
308081
308036
308363
972030
308327-O
308040-O
308331
308352-O
303241
308331
965023
308322
308036
970121
308373
308316
303241
CUTAWAY VIEW
Be careful not to cross-thread
the collar on the shock body.

18
➊
Fully extend the piston rod so the piston is at the bottom of the shock body.
Hold the shock upright and slightly overfill the shock body with shock oil.
Let the oil settle and allow air bubbles to rise to the top. Slowly move the piston up
and down until no more air bubbles appear. Add shock oil as necessary.
Pull the piston rod most of the way out of the shock body. Let the shock rest for 5
minutes to allow the air bubbles to escape.
➊
➋
➌
➍
SHOCK OIL (600cSt INITIAL SETTING) HUDY SHOCK OILS
#106335 350cSt
#106340 400cSt
#106345 450cSt
#106350 500cSt
#106355 550cSt
#106360 600cSt
#106365 650cSt
#106370 700cSt
#106375 750cSt
#106380 800cSt
DOWNSTOP ADJUSTMENT
The length of the shock absorber
affects the amount of rear downstop.
To adjust, thread the ball joint on or
off the shock shaft.
RELEASE
2-3 turns
TIGHTEN
FULLY
It is very important to push the shock shaft into the shock body slowly otherwise air can come
into the shock body which would create bubles.
100% rebound - repeat step 2 and 3 two - three times
75% rebound - repeat step 2 and 3 until the shock shaft will push out 75% of its length
50% rebound - repeat step 2 and 3 until the shock shaft will push out 50% of its length
25% rebound - repeat step 2 and 3 until the shock shaft will push out 25% of its length
0% rebound - repeat step 2 and 3 until the shock shaft will push out 0% of its length
If the shock shaft does not rebound enough, you will have to refill the shock with shock oil, and
then repeat the bleeding and rebound adjustment procedure.
0%
50%
75%
➊ ➋ ➌
100%
25%
AFTER THE SHOCK IS ASSEMBLED YOU HAVE TO SET THE SHOCK REBOUND.
➊ Release the shock cap by 2-3 turns.
➋ Push the shock shaft fully up. For the first
time the extra oil will release through
the hole in the alu cap-nut.
➌ Tighten the shock cup. When tightening
the shock cap, extra oil will again release
through the hole in the alu cap - nut.
When tightening, the shock shaft will push
out from the shock body.
NOTE ORIENTATION
SOFTER OIL
Recommended for bumpy
and low-traction tracks,
generates more traction.
HARDER OIL
Recommend for flat and
higher traction tracks,
improves steering response.
DETAIL
DETAIL
4. CENTER SHOCK
➌
When installing the shock cap assembly on the shock body,
some oil will leak out... this is normal.
Fully tighten the cap and clean off any excess oil.
After the shock is assembled, the shock rod will push itself
out of the shock body fairly quickly.
Follow the next procedure to adjust the rebound.
REBOUND ADJUSTMENT REBOUND CHECK
CENTER SHOCK OIL ADJUSTMENT
65mm

19
5. FINAL ASSEMBLY
BAG
30 2612-O ALU ADJ. TURNBUCKLE M3 L/R 39 MM - ORANGE - SWISS 7075 T6 (2)
30 2663 COMPOSITE BALL JOINT 4.9MM - OPEN - V2 (8)
30 2665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4)
30 3127-K ALU SHIM 3x6x4.0MM - BLACK (10)
30 3211-O ALU ADJ. TURNBUCKLE L/R 30 MM - SWISS 7075 T6 (2)
305968~306000 PINION GEAR HARDCOATED 18~50T/64P (OPTION)
30 6200-O ALU SERVO MOUNT - ORANGE (2)
30 6219 COMPOSITE SET OF SERVO SHIMS (4)
30 6301 ANTENNA MOUNT - THIN
30 6310 ANTENNA (2)
30 9400 BODY CLIP (8)
33 8586 SHIM 5x7x0.5 (10)
36 2650 BALL END 4.9MM WITH THREAD 6MM (2)
36 2651 BALL END 4.9MM WITH THREAD 8MM (2)
37 1201 X1 COMPOSITE FRONT BUMPER
37 1250 X1 LEXAN FRONT SPOILER (2)
37 1320 COMPOSITE BODY POST (2)
37 2503 COMPOSITE SERVO SAVER - X-STIFF - SET - V2
37 2540 X1 COMPOSITE STEERING ARM
37 2550-O X1 ALU STEERING PIVOT SHAFT
37 2551-O ALU STEERING PIVOT SHAFT - SHORT
37 3512-K X1 COMPOSITE ADJUSTABLE REAR WING - BLACK
37 6130 COMPOSITE LiPo BATTERY BACKSTOP (2)
37 6364-O ALU MOUNT 10.8MM - ORANGE (2)
37 9701 XRAY X1 BODY FOR 1/10 FORMULA
90 2205 HEX SCREW SH M2x5 (10)
90 2306 HEX SCREW SH M3x6 (10)
90 2308 HEX SCREW SH M3x8 (10)
90 2310 HEX SCREW SH M3x10 (10)
90 3306 HEX SCREW SFH M3x6 (10)
90 3308 HEX SCREW SFH M3x8 (10)
90 3412 HEX SCREW SFH M4x12 (10)
90 6206 SCREW PHILLIPS FH 2.2x6 (10)
94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2)
94 0510 HIGH-SPEED BALL-BEARING 5x10x4 RUBBER SEALED (2)
96 0040 NUT M4 (10)
98 1210 PIN 2x10 (10)
302665
306310
306301
903308
306200-O
STEERING SERVO
(NOT INCLUDED)
902308
372503
372503
362650
940508
372551-O
372550-O
309400
309400
371320
371320
903306
305968~306000
(NOT INCLUDED)
RECEIVER
(NOT INCLUDED)
373512-K
376364-O
960040
371250
379701
940510
903412
902205
960040
376130
902310
906206
902306
903306
362651
302663
302612-O
940508
372540
981210
306219
902310
303127-K
362650
372503
902306
306219
SPEED CONTROLLER
(NOT INCLUDED)
LIPO BATTERY
(NOT INCLUDED)
WHEELS & TIRES
(NOT INCLUDED)
MOTOR
(NOT INCLUDED)
FROM SERVO
371201
903306
940510
960040
902308
303211-O
302665
338586
#372541 - ALU ADJUSTABLE SERVO SAVER SET
#371202 - X1 COMPOSITE ADJUSTABLE FRONT AERO WING - ETS APPROVED
#371290 - X1 ALU BODY POST PLATE

20
303127-K
SHIM 3x6x4
902306
SH M3x6
940508
BB 5x8x2.5
These shims adjust the horizontal
angle of the steering linkages.
When thicker shims are used here,
in-corner steering increases, but the
car becomes more difficult to drive.
STANDARD STEERING ARM MOUNTING
Standard steering mounting system
provides maximum steering response
and makes the car more precise.
3x6x4mm
There are two Ackermann positions on the steering arm.
INNER position: Less Ackermann, makes the car more
responsive, improves in-corner steering.
OUTER position: More Ackermann, makes the car easier to
drive, improves cornering speed.
903306
SFH M3x6
8mm THREAD
6mm THREAD
NOTE ORIENTATION
DETAIL
5. FINAL ASSEMBLY
INITIAL
SETTING
INITIAL
SETTING
(INITIAL SETTING)
ALTERNATIVE 1
OIL
OIL
The steering arm has two position for servo linkage mounting.
Always use this position
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
#372541 - ALU ADJUSTABLE SERVO SAVER SET