Xray XB2C'20 User manual

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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: [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]
Fax: [phone]
E-mail: [email protected]
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.

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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 [e-mail], or contact
the XRAY distributor in your country.

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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.
SYMBOLS USED
EQUIPMENT REQUIRED
EQUIPMENT
INCLUDED
HUDY Premium Silicone Oils
Oil 500cSt (#106350)
Oil 450cSt (#106345)
Oil 550cSt (#106355)
Oil 5.000cSt (#106450)
Transmitter Steering ServoReceiver
Lexan™ Paint Battery Charger Tires & Inserts
Graphite Grease
(HUDY #106210)
Bearing Oil
(HUDY #106230)
CA glue
SAMPLE OF
OPTIONAL PARTS
#32XXXX OPTION 1
#32XXXX OPTION 2
#32XXXX INCLUDED
#32XXXX OPTION 3
Speed Controller LiPo Battery
Pinion Gear with Setscrew
Electric Motor &
Double-sided Tape
(HUDY #107875)
L=R
2x
CA
OIL
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 Apply oil
Optional
parts
TL
05
Tighten screw
gently
Completed
assembly
Detail
Apply
threadlock
Apply greaseScale Ensure smooth
non-binding
movement
Follow Set-Up Book
1:1
DETAIL
Apply cleaner
Arm Reamer 3.0mm
TOOLS REQUIRED
Side Cutters
(HUDY #189010)
Turnbuckle Wrench
3mm (HUDY #181030)
Reamer (HUDY #107600) or (HUDY #107601)
Tweezer
Combination Pliers
(HUDY #189020)
HUDY TOOLS:
Scissors
(HUDY #188990)
3.0 mm
Special Tool for
turnbuckles, nuts
(HUDY #181090)
Socket 5.5mm
Socket 7.0mm
Allen 2.0mm
Allen 1.5mm
Pocket Hobby Knife
(HUDY #188981)
Professional Multi Tool
(HUDY #183011)
DIRT
CARPET

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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
TECH TIPS
SHOCK TOWER PROTECTION
Please follow the Instruction Manual and seal the edges of the shock tower with CA to reinforce them and help prevent
delamination.
Fine sandpaper
Use fine sandpaper to
sand smooth the edges of
all graphite parts.
Apply CA glue to all edges
of the graphite parts.
GRAPHITE PARTS PROTECTION
TIP
Protect all Graphite Parts:
• Front shock tower
• Rear shock tower
MANUAL STEPS ONLY FOR DIRT MANUAL STEPS ONLY FOR CARPET MANUAL DUAL STEPS FOR CARPET AND DIRT
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.
1. BALL DIFFERENTIAL 1. GEAR DIFFERENTIAL
BAG BAG
3. REAR DRIVETRAIN
DIRTDIRT CARPETCARPET

GEAR DIFF. CASE
#324911 HARD INCLUDED
#324911-G GRAPHITE OPTION
GEAR DIFF. PULLEY
#324954 HARD INCLUDED
#324954-G GRAPHITE OPTION
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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
964031
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
CARPET
BEVEL & SATELITTE GEARS + PINS
#304932 + #304980 COMPOSITE INCLUDED
#335030 + #335080 STEEL OPTION
OIL
OIL
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)

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 11.32g)
➋
Slowly pour oil into the diff and watch the weight. Add
1.58g of oil into the diff. The approximate weight of the diff
including oil is 12.90g.
LOW-MEDIUM TRACTION 5.000cSt (HUDY #106450)
MEDIUM-HIGH TRACTION 7.000cSt (HUDY #106470)
NOTE: Softer oil increases rear traction, harder oil increases on-power steering.
TIPS FOR REAR DIFFERENTIAL
11.32g + 1.58g = 12.90g
#107865
HUDY Ultimate Digital Pocket Scale 300g±0.01g
5.000cSt
g
1 2.90
g
1 1.32
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
#106420 2.000cSt - 50ml OPTION
#106430 3.000cSt - 50ml OPTION
#106450 5.000cSt - 50ml INCLUDED
#106460 6.000cSt - 50ml OPTION
#106470 7.000cSt - 50ml OPTION
#106480 8.000cSt - 50ml OPTION
#106510 10.000cSt - 50ml OPTION
CARPET
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
1. BALL DIFFERENTIAL
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)
BAG
930508
DIRT
#930220
CERAMIC BALL 2.4MM (12)

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)
9
1. BALL DIFFERENTIAL DIRT
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
#930220
CERAMIC BALL 2.4MM (12)

BALL DIFF BREAK-IN & SET-UP INFO
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
DIRT

2. REAR TRANSMISSION
11
323018 COMPOSITE REAR MOTOR GEAR BOX - LCG - SET
324016 ALU MOTOR PLATE - LCG - SWISS 7075 T6
324052 COMPOSITE GEAR COVER - LCG
324114 ALU 2-PAD TOP SHAFT 20T - LCG - 7075 T6 - HARD COATED
324126 ALU 2-PAD SLIPPER CLUTCH PLATE - SHORT
324129 ALU 2-PAD SLIPPER CLUTCH PLATE WITH ADAPTER - LCG
324172 COMPOSITE ADJUSTMENT BALL-BEARING HUB (2)
324191 STEEL SLIPPER CLUTCH NUT - HUDY SPRING STEEL™
324225 COMPOSITE GEAR 25T - GRAPHITE
364131 SLIPPER CLUTCH PAD “SLS” - V2 (2)
364181 SLIPPER CLUTCH SPRING C=45 - BLACK
365878 COMPOSITE 3-PAD SLIPPER CLUTCH SPUR GEAR 78T / 48
902305 HEX SCREW SH M3x5 (10)
902310 HEX SCREW SH M3x10 (10)
902312 HEX SCREW SH M3x12 (10)
BAG
365878
364131
324191
364131
940612
324225
980320
903308
324016
902305
324172
325003
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)
980320 PIN 3x20 (10)
325003 BALL ADJUSTABLE DIFFERENTIAL - LCG - SET - HUDY SPRING STEEL™
DIRT
#324101
SLIPPER ELIMINATOR - SET
(69T / 48 SPUR GEAR)
#325872
SLIPPER ELIMINATOR
SPUR GEAR 72T / 48
324129
940510
324114
902310
323018
323018
323018
902312
930308
324052
930308
364181
324126
324172
SLIPPER CLUTCH SPUR GEARS
#365875 75T / 48 OPTION
#365878 78T / 48 INCLUDED
#365881 81T / 48 OPTION
#323018-G
REAR MOTOR GEAR BOX - LCG - GRAPHITE
#980320-T
Titan Pin 3x20 (2)

2. REAR TRANSMISSION
940510
BB 5x10x4
940612
BB 6x12x4
#980320-T
Titan Pin 3x20 (2)
12
OIL
BEARING OIL
(HUDY #106230)
980320
P 3x20
930308
BB 3x8x4
NOTE ORIENTATION
GRAPHITE GREASE
(HUDY #106210)
3 dots
3 dots LOWEST
MIDDLE 2 dots
2 dots LOWER
HIGHER 1 dots
1 dots MIDDLE
HIGHEST
DIRT
902310
SH M3x10
902312
SH M3x12
NOTE ORIENTATION
Dots must have same orientation
on each side (dots up or down)
6x12x4mm
3x8x4mm
3x8x4mm
5x10x4mm
GRAPHITE GREASE
(HUDY #106210)
Bearing with BLUE rubber covers
Bearing with BLUE rubber covers
OIL
BEARING OIL
(HUDY #106230)
DIFFERENTIAL HEIGHT ADJUSTMENT
INITIAL SETTING
2x
OIL
BEARING OIL
(HUDY #106230)
#323018-G
REAR MOTOR GEAR BOX - LCG - GRAPHITE
DIFF. NOTE ORIENTATION
Ball differential must always be
oriented with the screw on the right
side. If the ball differential is ori-
ented with the screw on the left side,
the ball diff will become loose when
the car is running.
"CLICK"

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

2. REAR TRANSMISSION
14
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” - V2 (2)
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
CARPET
#324101
SLIPPER ELIMINATOR - SET
(69T / 48 SPUR GEAR)
#325872
SLIPPER ELIMINATOR
SPUR GEAR 72T / 48
324172
#323019-G
FRONT MOTOR GEAR BOX - LCG - GRAPHITE
SLIPPER CLUTCH SPUR GEARS
#365875 75T / 48 OPTION
#365878 78T / 48 INCLUDED
#365881 81T / 48 OPTION
960040
364180
364131
364131
364131
940510
940612
930308
930308
903308
324016
323019
324172
324902
324052
324190
324120
324238
364140
980320
365878
324128
324113
902310
323019
323019
902312
902305

2. REAR TRANSMISSION
3 dots
3 dotsHIGHEST
2 dots
2 dotsHIGHER MIDDLE
1 dots
1 dots
DIFFERENTIAL HEIGHT ADJUSTMENT
INITIAL SETTING
2x
15
CARPET
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

2. REAR TRANSMISSION
NOTE ORIENTATION
16
960040
N M4
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION
DETAIL
INITIAL SETTING
Flush with end
of shaft
CARPET
#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

3. REAR SUSPENSION DIRTCARPET
GEAR BOX for CARPET
FRONT MOTOR POSITION
GEAR BOX for DIRT
REAR MOTOR POSITION
17
323087 GRAPHITE SHOCK TOWER - LCG - REAR 4.0MM
323314 ALU REAR LOWER SUSP. HOLDER FOR BENT SIDES CHASSIS - FRONT
323326 ALU REAR LOWER SUSP. HOLDER FOR BENT SIDES CHASSIS - REAR
362315 ECCENTRIC BUSHING SET (2)
363520 REAR WING POST (2)
367210 REAR SUSPENSION PIVOT PIN (2)
902310 HEX SCREW SH M3x10 (10)
902316 HEX SCREW SH M3x16 (10)
903308 HEX SCREW SFH M3x8 (10)
321107 XB2 ALU CHASSIS WITH BENT SIDES - SWISS 7075 T6 (2.5MM)
363112-H COMPOSITE SUSPENSION ARM REAR LOWER RIGHT - HARD
363122-H COMPOSITE SUSPENSION ARM REAR LOWER LEFT - HARD
306219 COMPOSITE SET OF SHIMS (4)
323113-H SUSPENSION ARM DISENGAGED REAR LOWER RIGHT - HARD
323123-H SUSPENSION ARM DISENGAGED REAR LOWER LEFT - HARD
BAG
2mm
2mm 2mm
2mm
XB2 CHASSIS
#321107 MID INCLUDED
#321108 LONG OPTION
#321109 SHORT OPTION
902310 902310
902316 902316
363520
323314
362315
902310
363122-H
363122-H
363112-H
323123-H
323087 323087
363112-H 323113-H
306219
306219
323326
362315
321107
903308
367210
DIRT
CARPET

TOE-IN
ANTI-SQUAT
ROLL CENTER
TRACK-WIDTH
DIRTCARPET
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
18
RR
RF
THREAD LOCK
(all screws)
All possible mounting
alternatives of eccentric bushings
3. REAR SUSPENSION
903308
SFH M3x8
(TOE IN = 3 º / ANTI-SQUAT = 2º)
(TOE IN = 3 º / ANTI-SQUAT = 2º)
Check for free movement
2mm
2mm
From Rear Arm
SHIM 3x6.5x2
306219
SHIM 3x6x2
NOTE ORIENTATION
DIRT
DIRT
CARPET
CARPET
0.5°
1°
INITIAL SETTING
0.5°
1°
INITIAL SETTING
REAR SUSPENSION ARMS DIRT
#323113-H RIGHT HARD INCLUDED
#323123-H LEFT HARD INCLUDED
#323113-G RIGHT GRAPHITE OPTION
#323123-G LEFT GRAPHITE OPTION
REAR SUSPENSION ARMS CARPET
#363112-H RIGHT HARD INCLUDED
#363122-H LEFT HARD INCLUDED
#363112-G RIGHT GRAPHITE OPTION
#363122-G LEFT GRAPHITE OPTION

DIRTCARPET
19
3. REAR SUSPENSION
#323088
ALU REAR SHOCK TOWER
902310
SH M3x10
902310
SH M3x10
902316
SH M3x16
903308
SFH M3x8
3x16mm
3x10mm
3x8mm
3x10mm
INITIAL SETTING
UP
DOWN
MIDDLE
UP
DOWN
WING POSITION
DETAIL

DIRTCARPET
20
302665 COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4)
303123 ALU SHIM 3x6x2.0MM (10)
306219 COMPOSITE SET OF SHIMS (4)
322610 ADJUSTABLE TURNBUCKLE 55MM M3 L/R - HUDY SPRING STEEL™ (2)
323044 COMPOSITE REAR ROLL CENTER HOLDER FOR ANTI-ROLL BAR
323354-H COMPOSITE UPRIGHT REAR - HARD
323382 ALU REAR HUB PLATE FOR MULTI ADJ. UPRIGHT - 1-HOLE - SWISS 7075 T6
325340 REAR DRIVE AXLE LB - HUDY SPRING STEEL™
327210 SUSPENSION PIVOT PIN (2)
362280 ALU CONICAL SHIM 3x6x2.0MM (10)
362316 ECCENTRIC BUSHING SET - OPEN (2)
362651 BALL END 4.9MM WITH THREAD 8MM (2)
365230 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
902205 HEX SCREW SH M2x5 (10)
902254 HEX SCREW SH M2.5x4 (10)
BAG
902312 HEX SCREW SH M3x12 (10)
902316 HEX SCREW SH M3x16 (10)
940513 BALL-BEARING 5x12x4 RUBBER SEALED - GREASE (2)
941014 BALL-BEARING 10x15x4 RUBBER SEALED - GREASE (2)
980210 PIN 2x9.8 (10)
3. REAR DRIVETRAIN
REAR UPRIGHTS
#323354-H HARD INCLUDED
#323354-G GRAPHITE OPTION
#323355 ALU OPTION
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 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 INCLUDED
#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
XRAY BALL-BEARING
#940512 5x12x4mm OIL OPTION
#941015 10x15x4mm OIL OPTION
#940513 5x12x4mm GREASE INCLUDED
#941014 10x15x4mm GREASE INCLUDED
ALU CONICAL SHIM
#362280 SILVER INCLUDED
#362280-K BLACK OPTION
#362280-O ORANGE OPTION
#323381
ALU REAR HUB PLATE FOR MULTI ADJUSTABLE
UPRIGHT - SWISS 7075 T6
#325341 REAR ADJUSTABLE DRIVE AXLE LB - HUDY SPRING STEEL™
# 325390 ALU SHIM 10x12x2MM (2)
REAR ROLL CENTER HOLDER
#323044 COMPOSITE INCLUDED
#323043 ALU OPTION
#323400
REAR ANTI-ROLL BAR 1.0MM SET 901306 362470
901303
303431-K
303454
901310
ANTI-ROLL BARS
#362470 1.0mm
#362471 1.1mm
#362472 1.2mm
#362473 1.3mm
362316
902205
902312
940513
323354-H 941014
362280
362280
362651
362652
302665 902316
303123
980210
325340
902254
327210
902254
323382
306219
322610
362316
306219
362651
302665
303123
980210
365230
303123
323044
DIRT
DIRT
DIRT
DIRT
CARPET
CARPET
CARPET
325324 REAR DRIVE SHAFT 75MM WITH 2.5MM PIN - HUDY SPRING STEEL™
362651 BALL END 4.9MM WITH THREAD 8MM (2)
365360 ALU WHEEL HUB 12MM - OFFSET “+3.0MM” (2)
325327 REAR DRIVE SHAFT 77MM WITH 2.5MM PIN - HUDY SPRING STEEL™
362652 BALL END 4.9MM WITH THREAD 10MM (2)
365357 ALU WHEEL HUB 12MM - OFFSET “+2.25MM” (2)
DIRT
CARPET
75mm
77mm
325327
325324
365360
365357
#305231
DRIVE SHAFT COUPLING
HUDY SPRING STEEL