Xray NT1 User manual

2
BEFORE YOU START
The NT1 is a high-competition, high-quality, 1/10-scale nitro 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 NT1, 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, the included set-up book, and examine all details carefully. If for some
reason you decide the NT1 is not what you wanted or expected, do not continue any further. Your hobby dealer
cannot accept your NT1 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
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
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.
• 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.
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 seri-
ous 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.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.
CUSTOMER SUPPORT XRAY Europe
K Výstavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: [phone]
Fax: [phone]
Email: [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 info@
teamxray.com. Also, please visit our Web site at www.teamxray.com to find the latest updates, set-up informa-
tion, 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]
Email: [email protected]
IMPORTANT NOTES – NITRO ENGINES
• Always test the brakes and the throttle before starting your engine to avoid losing control of the model.
• Make sure the air filter is clean and oiled.
• Never run your engine without an air filter. Your engine can be seriously damaged if dirt and debris get
inside the engine.
• For proper engine break-in, please refer to the manual that came with the engine.
• Do not run near open flames or smoke while running your model or while handling fuel.
• Some parts will be hot after operation. Do not touch the exhaust or the engine until they have cooled.
These parts may reach 275°F during operation!

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!
Please note that raw materials such as aluminum, steel, brass, fibreglass, or carbon fibre may
have small scratches on the surface which is a standard characteristic of any raw material.
Scratches on the surface of any materials are NOT considered to be material defects.
Products may potentially have small amounts of corrosion on them. This may be caused by variances in
weather during different times of the year, humidity in the shop or during shipping, and other contributing
factors. Even though we have taken all precautions and protection methods to prevent corrosion, these small
amounts of corrosion (if present) are unavoidable and considered to be acceptable.
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.
IMPORTANT NOTES – NITRO FUEL
• Handle fuel only outdoors. Never handle nitro fuel indoors, or mix nitro fuel in a place where ventilation
is bad.
• Only use nitro fuel for R/C models. Do not use gasoline or kerosene in R/C models as it may cause a fire
or explosion, and ruin your engine.
• Nitro fuel is highly inflammable, explosive, and poisonous. Never use fuel indoors or in places with open
fires and sources of heat.
• Always keep the fuel container cap tightly shut.
• Always read the warning label on the fuel container for safety information.
• Nitro-powered model engines emit poisonous vapors and gasses. These vapors irritate eyes and can be highly
dangerous to your health. We recommend wearing rubber or vinyl gloves to avoid direct contact with nitro fuel.
• Nitro fuel for RC model cars is made of the combination of the methyl alcohol, castor or synthetic oil,
nitro methane etc. The flammability and volatility of these elements is very high, so be very careful
during handling and storage of nitro fuel.
• Keep nitro fuel away from open flame, sources of heat, direct sunlight, high temperatures, or near
batteries.
• Store fuel in a cool, dry, dark, well-ventilated place, away from heating devices, open flames, direct
sunlight, or batteries. Keep nitro fuel away from children.
• Do not leave the fuel in the carburetor or fuel tank when the model is not in use. There is danger that
the fuel may leak out.
• Wipe up any spilled fuel with a cloth
• Be aware of spilled or leaking fuel. Fuel leaks can cause fires or explosions.
• Do not dispose of fuel or empty fuel containers in a fire. There is danger of explosion.

4
EQUIPMENT REQUIRED
TOOLS REQUIRED
INCLUDED NOT INCLUDED
SYMBOLS USED
Silicone Shock Oil
(HUDY #106360 600cSt)
Silicone Diff Oil
(HUDY #106560 60.000cSt)
(HUDY #106630 300.000cSt)
Transmitter Steering & Throttle ServosReceiver & Personal
Transponder
Battery Charger
Wheels & Tires
Starter Box (HUDY #104400)
& Battery Pack
Manifold & Exhaust
Engine
Air Filter & Oil Tire Truer
(HUDY #102003)
Fuel + Fuel Bottle
(HUDY #104200)
Threadlock & CA Glue
Glowplug Igniter
Reamer
(HUDY #107602)
(HUDY #107601)
Wrench Glowplug/Clutchnut
(HUDY #107581)
Pinion Tool Set
(XRAY #339901)
Flywheel Tool
(HUDY #182010)
Pliers
(HUDY #189020)
Side Cutters
(HUDY #189010)
Pocket Hobby Knife
(HUDY #188981)
One-Way Lube
(HUDY #106231)
Bearing Oil
(HUDY #106230)
Apply cyanoacrylate (CA) glue
Follow Set-Up Book
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 threadlock Number of teeth
Apply oil (may indicate specific type)
Follow tip here
Cut off remaining material
Scale
Ensure smooth non-binding movement
3.0 mm
Turnbuckle Tools
(HUDY #181030 - 3.0mm)
(HUDY #181020 - 3.0mm/4.0mm)
To ensure that you always have access to the most up-to-date version
of the XRAY Set-up Book, XRAY will now be offering only the digital
online version at our Website at www.teamxray.com. By offering this
online version instead of including a hardcopy printed version in kits,
you will always be assured of having the most up-to-date version.
WHEELBASE
Apply grease
Use pliers
Graphite Grease
(HUDY #106210)
Fibre Tape (HUDY #107870)
Double-sided Tape
(HUDY 107875)
Scissors
(HUDY #188990)
Lexan® Paint Receiver Battery Pack
DETAIL
Detail view
Assembly view
Bodyshell
Phillips 3.5mm
Exhaust Spring / Caster Clip Remover
Allen 1.5 / 2.0 / 2.5 / 3.0mm
TL CA
Professional Multi Tool
(HUDY #183011)
Ball Joint Wrench
(HUDY #181110)

5
1. FRONT GEAR DIFFERENTIAL & SOLID AXLE
981210
P 2x10
33 5000 FRONT GEAR DIFFERENTIAL - SET
33 5010 COMPOSITE FRONT DIFF. CASE, COVER & 27T BELT PULLEY
33 5027 COMPOSITE TIMING BELT PULLEY 27T
33 5030 DIFF BEVEL & SATELLITE GEARS (2+4)
33 5040 COMPOSITE SOLID AXLE ADAPTER
33 5073 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - LONG - HUDY SPRING STEEL™ (2)
33 5080 DIFF PIN (2)
90 3206 HEX SCREW SFH M2x6 (10)
90 3258 HEX SCREW SFH M2.5x8 (10)
96 2051 WASHER S 5x10x0.2 (10)
96 4031 WASHER S 3.5x10x0.2 (10)
96 4050 WASHER S 5x15x0.3 (10)
97 1240 SILICONE O-RING 24x0.7 (10)
97 2050 SILICONE O-RING 5x2 (10)
98 1210 PIN 2x10 (10)
972050
O 5x2
964050
S 5x15x0.3
962051
S 5x10x0.2
BAG
➊
➋
➌
➍➎
➏➎
➏
DETAIL
➎ ➏
STEP
DETAIL
335040
335030
335073
335073
962051
962051
903206
981210
981210
335010 or
335027
335010
972050
972050
964050
964050
903258
971240 964031
335030
335080
335010
#335100
XRAY MULTI DIFFERENTIAL - ONE-WAY - SOLID - SET
#335180
XRAY SUPERLIGHT SOLID AXLE SET - HUDY SPRING STEEL™
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)

6
GEAR DIFF ADJUSTMENT
1. FRONT GEAR DIFFERENTIAL & SOLID AXLE
14.70g
TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:
➋ Slowly pour oil into the diff and watch the weight.
Add 2.0g of oil into the diff. The approximate weight
of the diff including oil is 14.70g.
Push down
Wait approx. 5min
Rotate
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
12.70g + 2.0g = 14.70g
12.70g
➊ Put the diff (without oil) on the scale and
check the weight (approximately 12.70g)
14 70
12 70
964031
S 3.5x10x0.2
Silicone oil 300.000 cSt
Silicone oil 300.000 cSt
Fill differential up to the top of
the diff pins. DO NOT fill the diff
to the top of the housing.
Remove the nozzle of the bottle
to allow easy filling of the diff.
981210
P 2x10
972050
O 5x2
964050
S 5x15x0.3
962051
S 5x10x0.2
CUTAWAY VIEW
STEP
Use tweezers to insert pin
➊
➋
➌
➍
➎
➏
➎DETAIL
DETAIL
OIL
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)

7
1. FRONT GEAR DIFFERENTIAL & SOLID AXLE
SOLID AXLE
971240
O 24x0.7
903206
SFH M2x6
The front diff can be easily changed into a solid axle. Remove the
internal gears and replace with the solid axle locking body. DO NOT
add silicone oil inside the housing when making a solid axle.
903258
SFH M2.5x8
981210
P 2x10
972050
O 5x2
964050
S 5x15x0.3
962051
S 5x10x0.2
903258
SFH M2.5x8
Tighten the screws
equally but do NOT
tighten them completely
Finish tightening in
this order
➊
➋
➌➍ ➎
➊
➋
➌
➍
➎
➊
➋
➌
➍
After disassembling the differential, the large O-ring
may have an increased size and may be more difficult to
re-install. We recommend either replacing the O-ring
with a new one or carefully re-inserting the old O-ring
in the diff cover.
➊➋
➌
➍
NOTE ORIENTATION

8
1. REAR GEAR DIFFERENTIAL
962051
33 5030 DIFF BEVEL & SATELLITE GEARS (2+4)
33 5050 REAR GEAR DIFFERENTIAL - SET
33 5060 COMPOSITE REAR DIFF. CASE & COVER
33 5072 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2)
33 5080 DIFF PIN (2)
90 3258 HEX SCREW SFH M2.5x8 (10)
96 2051 WASHER S 5x10x0.2 (10)
96 4031 WASHER S 3.5x10x0.2 (10)
96 4050 WASHER S 5x15x0.3 (10)
97 1240 SILICONE O-RING 24x0.7 (10)
97 2050 SILICONE O-RING 5x2 (10)
98 1210 PIN 2x10 (10)
335072
335072
962051
981210
981210
903258
335060
971240 964050
964050
335030
335030
964031
335030
972050
972050
335060
335080
981210
P 2x10
972050
O 5x2
964050
S 5x15x0.3
962051
S 5x10x0.2
BAG
➊
➋
➌
➍➎
➏
➎
➏
DETAIL
➎ ➏
STEP
DETAIL
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)

9
1. REAR GEAR DIFFERENTIAL
14.70g
16.70g
TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:
➋ Slowly pour oil into the diff and watch the weight.
Add 2.0g of oil into the diff. The approximate weight
of the diff including oil is 16.70g.
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
➊ Put the diff (without oil) on the scale and check the weight
(approximately 14.70g)
14 70
16 70
981210
P 2x10
972050
O 5x2
964050
S 5x15x0.3
962051
S 5x10x0.2
➊
➋
➌
➍
➎
➏
Fill differential up to the top of
the diff pins. DO NOT fill the diff
to the top of the housing.
Remove the nozzle of the bottle
to allow easy filling of the diff.
Silicone oil 60.000 cSt
Silicone oil 60.000 cSt
DETAIL
Use tweezers to insert pin
STEP ➎DETAIL
DETAIL
14.70g + 2.0g = 16.70g
OIL

10
1. REAR GEAR DIFFERENTIAL
GEAR DIFF ADJUSTMENT
DETAIL
Wait approx. 5min
Rotate
Push down
971240
O 24x0.7
903258
SFH M2.5x8
Tighten the screws equally but do
NOT tighten them completely.
Finish tightening in this order.
➊
➋
➌
➍
After disassembling the differential, the large O-ring
may have an increased size and may be more difficult to
re-install. We recommend either replacing the O-ring with
a new one or carefully re-inserting the old O-ring in the
diff cover.
964031
S 3.5x10x0.2
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)

11
2. REAR SUSPENSION
29 6530-O ALU NUT M3 - ORANGE (10)
30 3122-O ALU SHIM 3x6x1.0MM - ORANGE (10)
30 3123-O ALU SHIM 3x6x2.0MM - ORANGE (10)
30 3130-O ALU SHIM 3x6x9.0MM - ORANGE (10)
30 3141-O ALU SHIM 3x5x1.0MM - ORANGE (10)
30 3241 BALL UNIVERSAL 5.8 MM HEX (4)
33 1110 CHASSIS 3MM - CNC MACHINED - SWISS 7075 T6
33 2070 COMPOSITE ADJUST. BALL-BEARING HUB (4)
33 2317 COMPOSITE SUSP. ECCENTRIC BUSHING (2+2)
33 2630 ADJ. TURNBUCKLE L/R 25 MM - HUDY SPRING STEEL™ (2)
33 2660 COMPOSITE STEERING & SERVO BALL JOINT 5.8 MM (4+2)
33 3016 ALU LOWER BULKHEAD REAR RIGHT - SWISS 7075 T6
33 3026 ALU LOWER BULKHEAD REAR LEFT - SWISS 7075 T6
33 3037 ALU UPPER CLAMP REAR (L+R) - SWISS 7075 T6
33 3054 GRAPHITE REAR BULKHEAD BRACE
33 3063 GRAPHITE ROLL-CENTER BRIDGE
33 3083 GRAPHITE SHOCK TOWER REAR
33 3110 COMPOSITE SUSPENSION ARM REAR LOWER - V2
33 3130 COMPOSITE REAR UPPER CAMBER LINK BALL JOINT 5.8 MM (4)
33 3240 BALL UNIVERSAL 5.8 MM HEX (4)
33 3311 COMPOSITE UPRIGHT REAR FOR AERO DISC
33 3461 COMPOSITE ANTI-ROLL BAR BALL JOINT 4.9 MM - V2 (4)
33 3470 ANTI-ROLL BAR FOR BALL-BEARINGS - REAR 2.0 MM
33 3711 ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - FRONT - RF
33 3720 ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - REAR - RR
33 4013 ALU BRAKE STAND - SWISS 7075 T6
33 4023 ALU 2-SPEED HOLDER - SWISS 7075 T6 - SET
33 4041 BRAKE CAM POST - STEEL
33 4052 COMPOSITE BRAKE UPPER PLATE
33 4070 COMPOSITE 6x13x5 BALL-BEARING HUB (2)
33 4112 VENTILATED BRAKE DISK - LASER CUT - PRECISION-GROUND
33 4120 HARDENED STEEL BRAKE PAD - LASER CUT (2)
33 4132 BRAKE PAD “SLS” (2)
33 4140-O BRAKE DISK ADAPTER - ALU 7075 T6 - ORANGE
33 5050 REAR GEAR DIFFERENTIAL - SET
33 5210 DRIVE AXLE - HUDY SPRING STEEL™
33 5250 ALU WHEEL HUB 12MM - BLACK (2)
33 5320 DRIVE SHAFT - 60 MM - HUDY SPRING STEEL™
33 5450 PUR®-REFINFORCED DRIVE BELT REAR 5.5 x 177 MM
33 5510 2-SPEED SHAFT - V2
33 5810 COMPOSITE BELT PULLEY 20T - 2-SPEED-CENTER
33 7250 STEEL PIVOT BALL 8.4 MM (2)
33 7253 COMPOSITE ADJUSTING NUT M10x1 WITH BALL CUP (4)
33 7312 REAR LOWER INNER PIVOT PIN (2)
34 3481-K ALU CUTTED ANTI-ROLL BAR COLLAR - BLACK (2)
36 2650 BALL END 4.9MM WITH THREAD 6MM (2)
90 1303 HEX SCREW SB M3x3 (10)
90 1304 HEX SCREW SB M3x4 (10)
90 1308 HEX SCREW SB M3x8 (10)
90 1316 HEX SCREW SB M3x16 (10)
90 1406 HEX SCREW SB M4x6 (10)
90 2306 HEX SCREW SH M3x6 (10)
90 2308 HEX SCREW SH M3x8 (10)
90 2320 HEX SCREW SH M3x20 (10)
90 3306 HEX SCREW SFH M3x6 (10)
90 3308 HEX SCREW SFH M3x8 (10)
93 0508 BALL-BEARING 5x8x2.5 (2)
94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2)
94 0613 HIGH-SPEED BALL-BEARING 6x13x5 RUBBER SEALED (2)
94 1016 HIGH-SPEED BALL-BEARING 10x16x4 RUBBER SEALED (2)
96 5070 E-CLIP 7 (10)
98 1208 PIN 2x8 (10)
98 1210 PIN 2x10 (10)
BAG
331110
902308
903306
902308
337312
303123-O
903308
903308
334023
303130-O
332630
333016
902308
333470
901304
333461
303241
901308
903308
333711
333026
333130
335320
335210
941016
337253 335250
303122-O
941016
333054
335810
334140-O
334112
334120
334052 981208
332070 333240
901308
333130
981210
901316
333311
902308
902306
333083
901303
940508
334041
940508
902308
902320 303130-O
334013
296530-O
334132
903306
901303
930508 343481-K
362650
902308
332660
902306
333063
333037
333037
941016
337250 901303
303123-O
303122-O
333240
333110
334070
902320
335050
965070
901406
335510
335450
940613
332317
903306
333720
902308
332317
902308
303141-O

12
REAR DOWNSTOP
ADJUSTMENT
2. REAR SUSPENSION
903308
SFH M3x8
NOTE ORIENTATION
901308
SB M3x8
1.3mm
2.5mm
REAR ARMS
LEFT REAR ARM
RIGHT REAR ARM
1.3mm
2.5mm
2x
REAR SUSPENSION ARMS
#333110 MEDIUM INCLUDED
#333111 HARD OPTION
902308
SH M3x8
These screws are part of the
REAR SUSPENSION MULTI-FLEX™ TECHNOLOGY
(see page 20)
IMPORTANT

13
ROLL CENTER
ADJUSTMENT
2. REAR SUSPENSION
902308
SH M3x8
902308
SH M3x8
BEARING OIL
BEARING OIL
NOTE ORIENTATION
NOTE ORIENTATION
Both bushings must be in same position #335451
HIGH-PERFORMANCE KEVLAR® DRIVE
BELT REAR 5.5x177mm - V2
941016
BB 10x16x4
TO LOOSEN REAR BELT: Rotate both rear nylon hubs in arrow direction A
REAR BELT TENSION ADJUSTMENT
L=R
BA
TO TIGHTEN REAR BELT: Rotate both rear nylon hubs in arrow direction B
INITIAL POSITION
DETAIL
NOTE ORIENTATION
Both bushings must be in same position
LEFT REAR ARM
RIGHT REAR ARM
-0.5mm
-0.5mm
Use (-0.5mm) suspension
holders for initial assembly.
REAR ROLL CENTER INSERT POSITIONS
-1.5mm -0.5mm +0.5mm +1.5mm
INITIAL SETTING
NOTE ORIENTATION
2x
It is extremely important that the arms
move freely on the pivot pins. If they do
not, use the #107633 HUDY Arm Reamer
to slightly resize the holes in the arms.
3x6x2mm
903306
SFH M3x6
DETAIL
Hole is from outside
NOTE ORIENTATION
303123-O
SHIM 3x6x2

14
2. REAR SUSPENSION
303241
BALL 5.8
6mm THREAD
IMPORTANT
21mm
2x 2x
2.0mm
27mm
DETAIL
902308
SH M3x8
902308
SH M3x8
902306
SH M3x6
3x6mm
3x8mm
DETAIL
NOTE ORIENTATION
Install the pivot balls with Professional
Multi Tool (HUDY #183011)

15
2. REAR SUSPENSION
930508
BB 5x8x2.5
BEARING OIL
BEARING OIL
BEARING WITH STEEL COVERS
902308
SH M3x8
WIRE REAR ANTI-ROLL BARS
#333468 1.8mm OPTION
#333470 2.0mm INCLUDED
#333472 2.2mm OPTION
#333474 2.4mm OPTION
#333476 2.6mm OPTION

16
2. REAR SUSPENSION
REAR ANTI-ROLL BAR
ADJUSTMENT
NOTE ORIENTATION
Tighten composite hex nuts
using HUDY tool #107581
➊
➋
➌
➍BEARING OIL
BEARING OIL
6mm
INITIAL SETTING
901303
SB M3x3
PIVOT BALLS
#337250 STEEL INCLUDED
#337251 ALU OPTION
#337255 TITANIUM OPTION
DETAIL
DETAIL
WHEEL HUBS
#335250 0mm INCLUDED
#335251 -0.75MM OPTION
#335252 +0.75MM OPTION
Set the bar into the center, remove the play in the
bushings, and tighten the set-screws fully.
VIEW
CENTER
DETAIL
During initial assembly, tighten each composite hex nut
until the pivot ball starts to bind, then loosen slightly.
Verify that the pivot balls move freely.
Pivot balls must
move freely.
941016
BB 10x16x4
901316
SB M3x16
981210
P 2x10
#337252 ALU NUT
#337254 COMPOSITE CUP
➊
➋
➌
901303
SB M3x3
901304
SB M3x4
When the bars are set, verify that both sides move at the same
time. If they do, the bars are set up correctly. If not, make sure
that both downstops are the same and that the bar wire is flat.
If the sides still do not
move at the same time,
adjust the length of the
bar holders.
3x4mm
3x4mm
3x3mm

17
2. REAR SUSPENSION
REAR CAMBER
ADJUSTMENT
DRIVE SHAFT
#335320 HUDY SPRING STEEL™ INCLUDED
#335321 ALU OPTION
#335305 CVD - SET OPTION
303122-O
SHIM 3x6x1
303123-O
SHIM 3x6x2 Ensure that both suspension
assemblies move freely.
Ensure that both suspension
assemblies move freely.
3x6x2mm
3x6x1mm
OUTSIDEINSIDE
3x6x1mm
333240
BALL 5.8
48.8mm
90° angle difference between the ball joints
Use ball joints WITH DOT
INITIAL SETTING
3.2mm 3mm
DETAIL
ALU CVD-SET
902308
SH M3x8
NOTE ORIENTATION
Install the pivot balls with Professional
Multi Tool (HUDY #183011)
BALL JOINT WRENCH
(HUDY #181110)

18
2. REAR SUSPENSION
SLS PADS FACE TOGETHER
3x5x1mm
3x5x1mm
NOTE ORIENTATION
NOTE ORIENTATION
Hole on outer side.
BEARING WITH BLUE COVERS
903308
SFH M3x8
BEARING OIL
BEARING OIL
940508
BB 5x8x2.5
940613
BB 6x13x5
903306
SFH M3x6
3x6mm
3x6mm
3x8mm
3x8mm
296530-O
N M3
303141-O
SHIM 3x5x1
902320
SH M3x20
STEEL
PAD STEEL
PAD
SLS
PAD
NOTE ORIENTATION
HOLE - OVAL
HOLE - ROUND
6x13x5mm
6x13x5mm
5x8x2.5mm
7.5mm
DETAIL
Roughen steel plates with sandpaper
before gluing SLS pads
We recommend gluing the brake pads
to the steel pads, however there is no
performance difference between glued
& unglued brake pads.
IMPORTANT
Tighten the screws fully so there is no
gap between screw head and bulkhead.
#372180
SPRING 4.0 COILS 3.6x6x0.5mm
C=3.5 - GOLD
The springs can be used only in combination
with #334111 Ventilated Brake Disc.

19
2. REAR SUSPENSION
965070
C 7
➊
➋
901406
SB M4x6
303130-O
SHIM 3x6x9
902320
SH M3x20
➍
STEP DETAIL
DETAIL
➊
➋
➍
➌
Tighten set-screw
onto flat spot
NOTE ORIENTATION
#334141
ALU LIGHTWEIGHT BRAKE DISK ADAPTER - SWISS 7075 T6
#334111
VENTILATED BRAKE DISC PRECISION-GROUND
LIGHTWEIGHT
#335511
2-SPEED SHAFT - LIGHTWEIGHT
3x6x9mm
3x6x9mm
These screws are part of the
REAR SUSPENSION MULTI-FLEX™ TECHNOLOGY
(see page 20)
➊ Remove short screws #902308 connecting
bulkheads to RF holder (page 12).
➋ Insert bushings between bulkheads as shown.
➌ Install & tighten longer screws #902320.
When installing bushings, do the following:

20
2. REAR SUSPENSION
BEARING WITH BLUE COVERS
BEARING OIL
Pin must protrude equally
on both sides of camshaft
940508
BB 5x8x2.5
981208
P 2x8
902308
SH M3x8
902306
SH M3x6
901303
SB M3x3
3x6mm
3x8mm
Graphite brace and posts are not used. This allows
maximum flex of the rear suspension and generates
maximum rear traction. Recommended for low-traction
tracks, or races with spec hard or large tires.
Graphite brace connected to 2-speed bulkheads without
posts. This slightly reduces the flex of the rear suspension
and improves out-of-corner steering and rotation
of the car, but also slightly decreases rear traction.
Recommended for medium-traction tracks, or races with
spec softer tires.
The all-new rear suspension design features Multi-Flex™ quick adjustment to easily adapt the handling of the
car to particular track conditions and tires used. There are 3 different flex characteristics to choose from.
Graphite brace connected to 2-speed bulkheads with
posts. This connects the entire rear suspension together,
creating a stiff frame which allows the car to rotate more
and improves out-of-corner steering. Recommended for
high-traction tracks, or when tires with additive are used.
(INITIAL SETTING)
ALTERNATIVE 1
SOFT
ALTERNATIVE 2
MEDIUM
ALTERNATIVE 3
STIFF
REAR SUSPENSION MULTI-FLEX™ TECHNOLOGY