Xray SCX User manual


2
BEFORE YOU START
This is a high-competition, high-quality RC 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 XRAY, 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 this is
not what you wanted or expected, do not continue any further. Your hobby dealer
can not accept your 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.
CUSTOMER SUPPORT
XRAY Europe
K Vystavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: 421-32-7401100
Fax: 421-32-7401109
E-mail: info@teamxray.com
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 info@teamxray.com. 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: (214) 744-2400
Fax: (214) 744-2401
E-mail: [email protected]
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.

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 RC 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 info@teamxray.com, or contact
the XRAY distributor in your country.

Allen 3.0mm (#113045- HUDY EXCLUSIVE Limited Edition)
4
TOOLS REQUIRED
EQUIPMENT REQUIRED
Transmitter & Receiver Steering Servo
Body Lexan™ Paint
Battery Charger
4x Tires & Inserts
Speed Controller LiPo BatteryElectric Motor & Pinion Gear
with Setscrew
Double-sided Tape
(HUDY #107875)
Tweezer
Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition)
Allen 2.0mm (#112045- HUDY EXCLUSIVE Limited Edition)
Socket 5.5mm (#175535 - HUDY EXCLUSIVE Limited Edition)
Socket 7.0mm (#177035 - HUDY EXCLUSIVE Limited Edition)
Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition)
Reamer (#107602 - HUDY EXCLUSIVE Limited Edition)
Turnbuckle Wrench 3mm (HUDY #181030)
Special Tool for turnbuckles, nuts (HUDY #181090)
TL
CA
Pocket Hobby Knife (HUDY #188981)
Scissors (HUDY #188990)
Side Cutters
(HUDY #189010)
Combination Pliers
(HUDY #189020)
Professional Multi Tool
(HUDY #183011)
CA glueThreadlock
Bearing Oil
(HUDY #106230)
OIL
EQUIPMENT INCLUDED
(HUDY #106210)
Premium Graphite Grease
OILOILOIL
650cSt (#106365)
HUDY Premium Silicone Oils
* Kit includes smaller but sufficient amount of oil and grease to build the car.
500cSt (#106350)
HUDY Premium Silicone Oils
5.000cSt (#106450)
HUDY Premium Silicone Oils

5
TECH TIPS
DRIVE SHAFT PIN SERVICING
TIP
To enjoy the longest possible lifespan of the drive shafts and diff outdrives, it is extremely important to properly service the drive shaft pins.
Inspect the pins after every 3 hours of runtime. If the pins show any wear, replace them with new pins.
For quick & easy drive pin replacements use
#106000 HUDY Drive Pin Replacement Tool
together with #106036 Ejector Pivot Pin &
Alternating Pivot 2.5mm.
To replace the worn pins use only
premium HUDY drive pins #106053.
Do not use drive shafts
when the pins are worn.
Press out the worn pins.
Press in new pins and
regularly inspect for wear.
At the beginning of each section is an exploded view of the parts to be assembled. There is also a list of all
the parts and part numbers that are related to the assembly of that section.
The part descriptions are color-coded to make it easier for you to identify the source of a part. Here are
what the different colors mean:
STYLE A - indicates parts that are included in the bag marked for the section.
STYLE B - indicates parts that are included in the box.
STYLE C - indicates parts that are already assembled from previous steps.
COLOR INDICATIONS
321100
324900
321200
NOT INCLUDED
To ensure that you always have access to the most up-to-date version of the Set-up
Book you can download the HUDY Set-up Book from their web site at [www.hudy.
net] By offering this online version instead of including a hardcopy printed version
in kits, you will always be assured of having the most current updated version.
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 an optional part
and must be purchased separately.
SAMPLE OF OPTIONAL PARTS
#32XXXX TYPE1 OPTION 1
#32XXXX TYPE1 OPTION 2
#32XXXX TYPE1 INCLUDED
Follow Set-Up Book:

GEAR DIFF. CASE
#324911 HARD INCLUDED
#324911-G GRAPHITE OPTION
GEAR DIFF. PULLEY
#324954 HARD INCLUDED
#324954-G GRAPHITE OPTION
6
1. GEAR DIFFERENTIAL
2x STEP
Use tweezer to insert pin
➊
➊
➋
➌
➍
➍
➎
➍➎
304932 GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
304980 COMPOSITE GEAR DIFF CROSS PIN
324990 DIFF GASKET (4)
324902 GEAR DIFFERENTIAL - LCG - SET
324911 COMPOSITE GEAR DIFFERENTIAL COVER - LCG
324954 COMPOSITE GEAR DIFFERENTIAL CASE - LCG - 53T
324962 GEAR DIFF OUTDRIVE ADAPTER - LCG - HUDY SPRING STEEL™ (2)
902258 HEX SCREW SH M2.5x8 (10)
941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2)
964031 WASHER S 3.5x10x0.2 (10)
964050 WASHER S 5x15x0.3 (10)
971050 SILICONE O-RING 5x1.5 (10)
981210 PIN 2x10 (10)
BAG
324962
324954
964050
971050
324911
902258
324962
304932
941014
981210
971050
964031
964050
324990
981210
941014
304932
304980
971050
O 5x1.5
971050
O 5x1.5
964050
S 5x15x0.3
964050
S 5x15x0.3
981210
P 2x10
981210
P 2x10
NOTE ORIENTATION
OIL
OIL
DETAIL
DETAIL
➎
➋
➌
➍
➎
BEVEL & SATELITTE GEARS + PINS
#304932 + #304980 COMPOSITE INCLUDED
#335030 + #335080 STEEL OPTION
OIL
OIL
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)
#325100
XRAY ACTIVE DIFFERENTIAL
- SET
#325003
BALL ADJUSTABLE DIFFERENTIAL -
LCG - SET - HUDY SPRING STEEL™
When using ball differential you have to use
#325318 REAR DRIVE SHAFT 95MM WITH 2.5MM PIN- HUDY SPRING STEEL™

DIFFERENTIAL OIL
Fill differential up to the
top of the diff pin.
DO NOT fill the diff to the
top of the housing.
TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:
➊
Put the diff (without oil) on the scale and check the
weight (approximately 11.92g)
➋
Slowly pour oil into the diff and watch the weight. Add
1.30g of oil into the diff. The approximate weight of the diff
including oil is 13.22g.
LOW-MEDIUM TRACTION 5.000cSt (HUDY #106450)
MEDIUM-HIGH TRACTION 10.000cSt (HUDY #106510)
NOTE: Softer oil increases rear traction, harder oil increases on-power steering.
TIPS FOR REAR DIFFERENTIAL
11.92g + 1.30g = 13.22g
#107865
HUDY Ultimate Digital Pocket Scale 300g±0.01g
5.000cSt
g
1 3.22
g
1 1.92
7
1. GEAR DIFFERENTIAL
964031
S 3.5x10x0.2
902258
SH M2.5x8
941014
BB 10x15x4
Rear diff
Silicone oil 5.000cSt
Fill just above the diff pin.
USE PROPER AMOUNT OF OIL IN THE DIFFS
Use a digital scale to measure the exact amount of oil
in the diff. Remember that during operation the diff
gets hotter and the heat may allow the oil to expand.
If there is too much oil inside it may interfere with the
diff operation and damage the internal gears.
OIL
Tighten the screws equally but do NOT
tighten them completely.
Finish tightening in this order.
➊
➋
➌
➍
HUDY ULTIMATE SILICONE OILS
#106450 5.000cSt - 50ml INCLUDED
#106460 6.000cSt - 50ml OPTION
#106470 7.000cSt - 50ml OPTION
#106480 8.000cSt - 50ml OPTION
#106490 9.000cSt - 50ml OPTION
#106510 10.000cSt - 50ml OPTION
#106492 11.000cSt - 50ml OPTION
#106512 12.000cSt - 50ml INCLUDED
#106515 15.000cSt - 50ml INCLUDED
#106520 20.000cSt - 50ml INCLUDED
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED

930120
365080
305092
325072
365080
325053
325023
930126
325061
941014
325013
930126
BA 2.6x6x1
GRAPHITE GREASE
(HUDY #106210)
2.0mm carbide balls (6x)
CUTAWAY VIEW
941014
8
OPTION
305092 BALL DIFFERENTIAL SPRING
325003 BALL ADJUSTABLE DIFFERENTIAL - LCG - SET - HUDY SPRING STEEL™
325013 BALL DIFFERENTIAL SHORT OUTPUT SHAFT - LCG - HUDY SPRING STEEL™
325023 BALL DIFFERENTIAL LONG OUTPUT SHAFT - LCG - HUDY SPRING STEEL™
325053 COMPOSITE BALL DIFFERENTIAL GEAR 53T
325061 SCREW FOR BALL DIFF ADJUSTMENT - SPRING STEEL™
325072 ALU BALL DIFFERENTIAL NUT
365080 DIFF WASHER 17 x 24.5 x 1 (2)
930120 CARBIDE BALL 2.4MM FOR BALL DIFF (12)
930126 CARBIDE BALL-BEARING AXIAL 2.6x6x1
930508 BALL-BEARING 5x8x2.5 STEEL SEALED - OIL (2)
941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2)
#325003
BALL ADJUSTABLE DIFFERENTIAL - LCG - SET - HUDY SPRING STEEL™
930508
#930220
CERAMIC BALL 2.4MM (12)
When using ball differential you have to use #325318
# 325318
REAR DRIVE SHAFT 95MM WITH 2.5MM PIN- HUDY SPRING STEEL™

930508
BB 5x8x2.5
930120
B 2.4
941014
BB 10x15x4
DIFF GREASE
(HUDY #106211)
Square shape orientation on TOP side.
Round shape orientation on BOTTOM side.
NOTE ORIENTATION
2.0mm
THREAD LOCK
DIFF GREASE
(HUDY #106211)
CUTAWAY
VIEW
2.0mm
DIFF GREASE
(HUDY #106211)
BEARING OIL
(HUDY #106230)
OIL
2.4mm carbide balls (12x)
DIFF GREASE
(HUDY #106211)
9
OPTION
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
#930220
CERAMIC BALL 2.4MM (12)

OPTION
BEFORE RACING, follow these steps to properly break in the differential.
Loosen the adjustment screw 1/2 turn (180° CCW).
2.0mm
2.0mm
2.0mm
(180° CCW)
½
LOOSEN THE ADJUSTMENT SCREW
FULLY TIGHTEN
FULLY TIGHTEN
LOOSEN THE ADJUSTMENT SCREW 1/8 TURN (45˚CCW).
2.0mm
LOOSEN THE ADJUSTMENT SCREW (45˚CCW)
HOLD THE LEFT
REAR WHEEL
HOLD THE SPUR GEAR
ROTATE THE WHEEL IN THE
DIRECTION OF TRAVEL
TABLE
2x
BALL DIFFERENTIAL IS NOW READY
10
BALL DIFF BREAK-IN & SET-UP INFO

2. REAR TRANSMISSION
11
323019 COMPOSITE FRONT MOTOR GEAR BOX - LCG - SET
324016 ALU MOTOR PLATE - LCG - SWISS 7075 T6 (3MM)
324052 COMPOSITE GEAR COVER - LCG
324113 ALU 3-PAD TOP SHAFT 20T - LCG - SWISS 7075 T6 - HARD COATED
324120 ALU 3-PAD SLIPPER CLUTCH PLATE - SWISS 7075 T6
324128 ALU 3-PAD SLIPPER CLUTCH PLATE WITH ADAPTER - LCG
324172 COMPOSITE ADJUSTMENT BALL-BEARING HUB (2)
324190 ALU 3-PAD SLIPPER CLUTCH SHIM
324238 COMPOSITE GEAR 38T - LCG - GRAPHITE
364131 SLIPPER CLUTCH PAD SLS - SOFT (3)
364140 ALU 3-PAD SLIPPER CLUTCH PLATE DISC - 7075 T6
364180 SLIPPER CLUTCH SPRING C=30 - BLACK
365878 COMPOSITE 3-PAD SLIPPER CLUTCH SPUR GEAR 78T / 48
BAG
902305 HEX SCREW SH M3x5 (10)
902310 HEX SCREW SH M3x10 (10)
902312 HEX SCREW SH M3x12 (10)
903308 HEX SCREW SFH M3x8 (10)
930308 BALL-BEARING 3x8x4 STEEL SEALED - OIL (2)
940510 BALL-BEARING 5x10x4 RUBBER SEALED - OIL (2)
940612 BALL-BEARING 6x12x4 RUBBER SEALED - OIL (2)
960040 NUT M4 (10)
980320 PIN 3x20 (10)
324902 GEAR DIFFERENTIAL - LCG - SET
#324101
SLIPPER ELIMINATOR - SET
(69T / 48 SPUR GEAR)
#325872
SLIPPER ELIMINATOR
SPUR GEAR 72T / 48
324172
323019
#323019-G
FRONT MOTOR GEAR BOX - LCG - GRAPHITE
SLIPPER CLUTCH SPUR GEARS
#365875 75T / 48 OPTION
#365878 78T / 48 INCLUDED
#365881 81T / 48 OPTION
#980320-T
Titan Pin 3x20 (2)
#324102
SOLID AXLE - LCG - LIGHTWEIGHT - SET
2-PAD SLIPPER
#324114 ALU 2-PAD TOP SHAFT 20T
#324126 ALU 2-PAD SLIPPER CLUTCH PLATE - SHORT
#324129 ALU 2-PAD SLIPPER CLUTCH PLATE - LCG
#364181 SLIPPER CLUTCH SPRING C=45 - BLACK
#324191 STEEL SLIPPER CLUTCH NUT
324017
GRAPHITE MOTOR PLATE - LCG - 3.0MM
960040
364180
364131
364131
364131
940510
940612
930308
930308
324016
324172
324902
324052
324190
324120
324238
364140
980320
365878
324128
324113
902310
323019
323019
902312
902305
903308

2. REAR TRANSMISSION
3 dots
3 dotsHIGHEST
2 dots
2 dotsHIGHER MIDDLE
1 dots
1 dots
DIFFERENTIAL HEIGHT ADJUSTMENT
INITIAL SETTING
2x
12
902310
SH M3x10
OIL
"CLICK"
GRAPHITE GREASE
(HUDY #106210)
GRAPHITE GREASE
(HUDY #106210)
OIL
BEARING OIL
(HUDY #106230)
940612
BB 6x12x4
980320
P 3x20
930308
BB 3x8x4
6x12x4mm
3x8x4mm
3x8x4mm
940510
BB 5x10x4
902312
SH M3x12
#323019-G
FRONT MOTOR GEAR BOX - LCG - GRAPHITE
Bearing with BLUE rubber covers
OIL
BEARING OIL
(HUDY #106230)
Bearing with BLUE rubber covers
OIL
BEARING OIL
(HUDY #106230)
NOTE ORIENTATION
NOTE ORIENTATION
Dots must have same orientation
on each side (dots up or down)
LOWESTLOWERMIDDLE
#980320-T
Titan Pin 3x20 (2)

2. REAR TRANSMISSION
NOTE ORIENTATION
13
960040
N M4
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
DETAIL
INITIAL SETTING
Flush with end
of shaft
#324101
SLIPPER ELIMINATOR - SET
(69T / 48 SPUR GEAR)
#325872
SLIPPER ELIMINATOR
SPUR GEAR 72T / 48
902305
SH M3x5
903308
SFH M3x8
SLIPPER CLUTCH SPUR GEARS
#365875 75T / 48 OPTION
#365878 78T / 48 INCLUDED
#365881 81T / 48 OPTION
#324102
SOLID AXLE - LCG - LIGHTWEIGHT - SET

3. REAR SUSPENSION
14
306219 COMPOSITE SET OF SERVO SHIMS (4)
321201 SCX COMPOSITE FRONT & REAR BUMPERS (1+2)
323085-H COMPOSITE SHOCK TOWER REAR - LCG - HARD
323112-M COMPOSITE SUSPENSION ARM REAR LOWER - MEDIUM
323314 ALU REAR LOWER SUSP. HOLDER FOR BENT SIDES CHASSIS - FRONT
323326 ALU REAR LOWER SUSP. HOLDER FOR BENT SIDES CHASSIS - REAR
367210 SUSPENSION PIVOT PIN (2)
362315 ECCENTRIC BUSHING SET (2)
BAG
362315
306219
367210
323112-M
903308
903308
903310
323314
321110
902316
323112-M
323326
902325
323085-H
321201
REAR SUSPENSION ARMS
#323112-M MEDIUM INCLUDED
#323112-H HARD OPTION
#323112-G GRAPHITE OPTION
902316 HEX SCREW SH M3x16 (10)
902325 HEX SCREW SH M3x25 (10)
903308 HEX SCREW SFH M3x8 (10)
903310 HEX SCREW SFH M3x10 (10)
321110 SCX ALU CHASSIS WITH BENT SIDES - SWISS 7075 T6 (2.5MM)

TOE-IN
ANTI-SQUAT
ROLL CENTER
TRACK-WIDTH
ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER.
Middle position = 0.5° or 0.375mm from center. Outer position = 1° or 0.75mm from center.
The XRAY rear alu lower suspension holders provide great range of adjustment for the rear suspension. Using different combinations of eccentric bushings, fine adjustment of rear anti-squat, rear toe-in, rear
roll center, and rear track-width can be obtained. For more information about the influence of rear anti-squat, rear toe-in, rear roll center and rear track width on car handling, please refer to HUDY Set-up Book
(#209100).
The tables describe the amounts of adjustment using the center and outside positions of the eccentric bushings.
The middle position eccentric bushings allow for finer adjustment increments.
Example:
The track-width is directly influenced by the size of
the wheels and tires used.
0(RR) - 0 (RF) = 2°
0(RR) - 0.5 (RF) = 2.5°
0(RR) - 1 (RF) = 3°
ANTI-SQUAT ROLL CENTER TRACK-WIDTH TOE-IN
RR RR RR RRRF RF RF RF(°) (mm) (mm) (°)
=2°
=3°
=1°
=3°
=2°
=4°
=1°
=2°
=0°
= 2°
= 2.5°
= 3°
=3°
=4°
=2°
=2°
=3°
=1°
=4°
=5°
=3°
=
+1.5mm
=
0mm
=
-1.5mm
=
+0.75mm
=
0mm
=
-0.75mm
15
RR
RF
THREAD LOCK
(all screws)
INITIAL SETTING
INITIAL SETTING
3. REAR SUSPENSION
903308
SFH M3x8
2mm
2mm
Check for free movement
Check for free movement
306219
SHIM 3x6x2
REAR SUSPENSION ARMS
#323112-M MEDIUM INCLUDED
#323112-H HARD OPTION
#323112-G GRAPHITE OPTION
MEDIUM - For very-low & low traction
HARD - For medium & high traction
GRAPHITE - For high & very-high traction
Arm Reamer 3.0mm
(HUDY #107633)
3.0mm
If the suspension arm does not move
freely use a HUDY Arm Reamer to
size the holes of the arms
ARM
ARM
NOTE ORIENTATION
903310
SFH M3x10
3x10mm
3x8mm
COMPOSITE ECCENTRIC BUSHINGS
COMPOSITE ECCENTRIC BUSHINGS

16
3. REAR SUSPENSION
NOTE ORIENTATION
3x25mm
3x25mm
3x16mm
3x16mm
902325
SH M3x25
902316
SH M3x16
903308
SFH M3x8

#325341
REAR ADJUSTABLE DRIVE AXLE LB
HUDY SPRING STEEL™
#
325390
ALU SHIM 10x12x2MM (2)
941014
BB 10x15x4
17
3. REAR DRIVETRAIN
302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4)
303123 ALU SHIM 3x6x2.0MM (10)
306219 COMPOSITE SET OF SERVO SHIMS (4)
322612 ADJUSTABLE TURNBUCKLE 75MM M3 L/R - HUDY SPRING STEEL™ (2)
323044 COMPOSITE REAR ROLL CENTER HOLDER
323045 SCX ALU REAR HOLDER ADAPTER FOR BUMPER
323354-H COMPOSITE UPRIGHT REAR - HARD
323382 ALU REAR HUB PLATE FOR MULTI ADJ. UPRIGHT - 1-HOLE - 7075 T6
325319 DRIVE SHAFT 93MM WITH 2.5MM PIN - HUDY SPRING STEEL™
325340 REAR DRIVE AXLE LB - HUDY SPRING STEEL™
327321 REAR ARM PIVOT PIN (2)
362280 ALU CONICAL SHIM 3x6x2.0MM (10)
362316 ECCENTRIC BUSHING SET - OPEN (2)
902205
323382
303123
362316
306219 323354-H
362280
362651
302665
980210
980210
325319
365230
325340
362651
362280
322612
941014
940513
365360
902312
BAG
902254
327321
962030
962031
961025
362651 BALL END 4.9MM WITH THREAD 8MM (2)
365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
365360 ALU WHEEL HUB 12MM - OFFSET “+3.0MM” (2)
902205 HEX SCREW SH M2x5 (10)
902254 HEX SCREW SH M2.5x4 (10)
902312 HEX SCREW SH M3x12 (10)
902322 HEX SCREW SH M3x22 (10)
940513 BALL-BEARING 5x12x4 RUBBER SEALED - GREASE (2)
941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2)
961025 WASHER S 2.5 (10)
962030 WASHER S 3x6x0.3 (10)
962031 WASHER S 3x6x0.1 (10)
980210 PIN 2x9.8 (10)
2x
L=R
GRAPHITE GREASE
(HUDY #106210)
➊
➋
➌
➍
➐
➑
➒
➎
➏
2x
L=R
940513
BB 5x12x4
902205
SH M2x5
980210
P 2x10
5x12x4mm
10x15x4mm
XRAY BALL-BEARING
#940512 5x12x4 OIL OPTION
#941015 10x15x4 OIL OPTION
#940513 5x12x4 GREASE INCLUDED
#941014 10x15x4 GREASE INCLUDED
Bearing with black
rubber covers
HUDY Ball-Bearing
Grease
REAR UPRIGHTS
#323354-H HARD INCLUDED
#323354-G GRAPHITE OPTION
#323355 ALU OPTION
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
902322
323045
323044
OPTIONAL HEX HUB EFFECTS
Different offset hex hubs are used to increase or
decrease the track-width.
LESS OFFSET
Rear - more traction
Front - more steering
MORE OFFSET
Rear - less traction
Front - less steering
WHEEL HEX HUBS 12MM
#365360 +4.5mm 6 slots INCLUDED
#365359 +3.75mm 5 slots OPTION
#365358 +3.0mm 4 slots OPTION
#365357 +2.25mm 3 slots OPTION
#365356 +1.5mm 2 slots OPTION
#365355 +0.75mm 1 slot OPTION
#365353 0mm 0 slots OPTION
#365354 - 0.75mm Lightw. OPTION
#365361 -1.25mm Lightw. OPTION
#305231
DRIVE SHAFT COUPLING
HUDY SPRING STEEL
When using ball differential you have to use
#325318
# 325318
REAR DRIVE SHAFT 95MM WITH 2.5MM
PIN- HUDY SPRING STEEL™

ANTI-ROLL BARS
#362470 1.0mm OPTION
#362471 1.1mm OPTION
#362472 1.2mm OPTION
#362473 1.3mm OPTION
#323400
REAR ANTI-ROLL BAR 1.0mm SET
18
3. REAR DRIVETRAIN
2x
2mm
2mm
INITIAL SETTING
L=R
902312
SH M3x12
303123
SHIM 3x6x2
INITIAL SETTING
L=R
INITIAL SETTING
NOTE ORIENTATION
902322
SH M3x22
55mm
2x
2x
L=R
L=R
THREAD
THREAD
8mm THREAD
8mm THREAD
Install the pivot balls with Professional
Multi Tool (HUDY #183011)
REAR ROLL CENTER HOLDER
#323044 COMPOSITE INCLUDED
#323043 ALU OPTION
#323044-G COMPOSITE OPTION
#323381
ALU REAR HUB PLATE FOR MULTI ADJUSTABLE
UPRIGHT - SWISS 7075 T6
901306
362470
901303
303431-K
303454
303454
901310
TIGHTEN
GENTLY

961025
S 2.5
962031
S 3x6x0.1
962030
S 3x6x0.3
S 2.5
S 2.5
19
3. REAR DRIVETRAIN
902254
SH M2.5x4
306219
SHIM 3x6x2
3x6x0.1mm
3x6x0.3mm
2mm
TIGHTEN
GENTLY
Ensure that the rear upright moves freely.
Check for free movement.
2x
2x
L=R
L=R
CONICAL SHIM 2mm
CONICAL SHIM 2mm
NOTE
ORIENTATION
NOTE
ORIENTATION
362280
CON. SHIM 3x6x2
ALU CONICAL SHIM
#362280 SILVER INCLUDED
#362280-K BLACK OPTION
#362280-O ORANGE OPTION
TIGHTEN GENTLY
L=R
INITIAL SETTING
DETAIL
3x6x0.1mm (use for MEDIUM suspension arm)
3x6x0.3mm (use for HARD or GRAPHITE suspension arm)

FRONT LOWER ARM MOUNT
#322310 ALU 26º OPTION
#322311 COMPOSITE 26º INCLUDED
#322312 BRASS 26º OPTION
#322313 ALU 23°/29° OPTION
#321211 SUSP. HOLDER BRACE 23°/29° OPTION
#322314 BRASS 23°/29° OPTION
#321211 SUSP. HOLDER BRACE 23°/29° OPTION
STEERING ARMS
#322514 HARD INCLUDED
#322514-G GRAPHITE OPTION
#322512 ALU OPTION
STEERING PLATE
#322573 HARD INCLUDED
#322573-G GRAPHITE OPTION
#322572 ALU OPTION
20
321252 SCX COMPOSITE CHASSIS SIDE GUARDS FOR BENT SIDES CHASSIS L+R
321262-H COMPOSITE CHASSIS FRONT GUARD - HARD - V2
321264 COMPOSITE FRONT CHASSIS SIDE BRACE - SHORT (2)
321271 GRAPHITE CHASSIS SIDE GUARD BRACE FOR BENT SIDES CHASSIS (2)
322311 COMPOSITE FRONT LOWER SUSPENSION HOLDER
322514 COMPOSITE STEERING ARM WITH STEERING MOUNT HOLE (2)
322550 ALU SERVO SAVER PIVOT SHAFT (2)
322573 COMPOSITE STEERING PLATE - FRONT/REAR MOUNTING POSITIONS
322590 ALU SHIM 3x4.7x1.0MM (10)
902306 HEX SCREW SH M3x6 (10)
902308 HEX SCREW SH M3x8 (10)
902312 HEX SCREW SH M3x12 (10)
903308 HEX SCREW SFH M3x8 (10)
903310 HEX SCREW SFH M3x10 (10)
903318 HEX SCREW SFH M3x18 (10)
930306 BALL-BEARING 3x6x2.5 STEEL SEALED - OIL (2)
940510 BALL-BEARING 5x10x4 RUBBER SEALED - OIL (2)
903308
903310
903318
903308
321271
321252
321252
321252
321252
322590
322590
322514
930306
322573
930306
902312
902306
940510
322514
322550
321264
902308
321262-H
322311
902308
903318
903308
903308
903310
4. FRONT ASSEMBLY
BAG
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