Xray NT1 2023 User manual

XR AY NT1'23

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
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.
IMPORTANT NOTES – GENERAL
• This product is not suitable for children under 16 years of age without the direct
supervision of a responsible and knowledgeable adult.
• Carefully read all manufacturers warnings and cautions for any parts used in the
construction and use of your model.
• Assemble this kit only in places away from the reach of very small children.
• First-time builders and users should seek advice from people who have building
experience in order to assemble the model correctly and to allow the model to
reach its performance potential.
• Exercise care when using tools and sharp instruments.
• Take care when building, as some parts may have sharp edges.
• Keep small parts out of reach of small children. Children must not be allowed to
put any parts in their mouth, or pull vinyl bag over their head.
• Read and follow instructions supplied with paints and/or cement, if used (not
included in kit).
• Immediately after using your model, do NOT touch equipment on the model such
as the motor and speed controller, because they generate high temperatures.
You may seriously burn yourself seriously touching them.
• Follow the operating instructions for the radio equipment at all times.
• Do not put fingers or any objects inside rotating and moving parts, as this may
cause damage or serious injury as your finger, hair, clothes, etc. may get caught.
• Be sure that your operating frequency is clear before turning on or running your
model, and never share the same frequency with somebody else at the same
time. Ensure that others are aware of the operating frequency you are using and
when you are using it.
• Use a transmitter designed for ground use with RC cars. Make sure that no one
else is using the same frequency as yours in your operating area. Using the same
frequency at the same time, whether it is driving, flying or sailing, can cause loss
of control of the RC model, resulting in a serious accident.
• Always turn on your transmitter before you turn on the receiver in the car. Always
turn off the receiver before turning your transmitter off.
• Keep the wheels of the model off the ground when checking the operation of the
radio equipment.
• Disconnect the battery pack before storing your model.
• When learning to operate your model, go to an area that has no obstacles that
can damage your model if your model suffers a collision.
• Remove any sand, mud, dirt, grass or water before putting your model away.
• If the model behaves strangely, immediately stop the model, check and clear the
problem.
• To prevent any serious personal injury and/or damage to property, be responsible
when operating all remote controlled models.
• The model car is not intended for use on public places and roads or areas where its
operation can conflict with or disrupt pedestrian or vehicular traffic.
• Because the model car is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference can
cause momentary loss of control, always allow a safety margin in all directions
around the model in order to prevent collisions.
• Do not use your model:
- Near real cars, animals, or people that are unaware that an RC car is being
driven.
- In places where children and people gather
- In residential districts and parks
- In limited indoor spaces
- In wet conditions
- In the street
- In areas where loud noises can disturb others, such as hospitals and
residential areas.
- At night or anytime your line of sight to the model may be obstructed or
impaired in any way.
To prevent any serious personal injury and/or damage to property, please be
responsible when operating all remote controlled models.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL BE CONSIDERED AS ABUSE AND/OR NEGLECT.
CUSTOMER SUPPORT
XRAY Europe
K 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 [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]
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!
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
TOOLS REQUIRED
Allen 1.5mm (#111545 - HUDY EXCLUSIVE Limited Edition)
Allen 2.0mm (#112045 - HUDY EXCLUSIVE Limited Edition)
Allen 3.0mm (#113045 - HUDY EXCLUSIVE Limited Edition)
Socket 5.5mm (#175535 - HUDY EXCLUSIVE Limited Edition)
Caster Clip Remover (#107612 - HUDY EXCLUSIVE Limited Edition)
Arm Reamer 3.0mm (#107643 - HUDY EXCLUSIVE Limited Edition)
Reamer (#107602 - HUDY EXCLUSIVE Limited Edition)
Cross Wrench 3mm (HUDY #107581)
Special Tool for turnbuckles, nuts (HUDY #181090)
Pocket Hobby Knife (HUDY #188981)
Scissors (HUDY #188990)
Side Cutters
(HUDY #189010)
Combination Pliers
(HUDY #189020)
Professional Multi Tool
(HUDY #183011)
Ball Allen Wrench 2.5mm (#132545 - HUDY EXCLUSIVE Limited Edition)
Ball Allen Wrench 2.0mm (#132045 - HUDY EXCLUSIVE Limited Edition)
Allen Wrench 2.5mm (#112545 - HUDY EXCLUSIVE Limited Edition)
Flywheel/Clutch Multi-Tool (HUDY #182010)
Turnbuckle Wrench 3mm
(HUDY #181030)
Tweezers
SYMBOLS USED
Part bags used
Optional parts
Assembly view Assemble left and right sides the same way
Assemble in the specified order
Detail
Pay attention here
Assemble as many times as specified
Apply threadlock
Number of teeth
Apply oil
Follow tip here
Cut off remaining material
Ensure smooth non-binding movement
Apply grease
DETAIL
Slotted Screwdriver 4.0mm (#154055 - HUDY EXCLUSIVE Limited Edition)
Slotted Screwdriver 3.0mm (#153055 - HUDY EXCLUSIVE Limited Edition)
HUDY Ball Joint Wrench
(HUDY #181110)
Clutch Spring Tool (HUDY #182005)
Socket 7.0mm (#177035 - HUDY EXCLUSIVE Limited Edition)
Pinion Tool Set (XRAY #339901)

5
NOT INCLUDED
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.
EQUIPMENT REQUIRED
Receiver Pack
Glow Plug IgniterStarter Box & Battery Pack
(HUDY #104400)
Steering and Throttle Servos
Battery Charger
Lexan™ Paint Fuel + Fuel Bottle
(HUDY #104200)
Wheels & Tires
Double-sided Tape
(HUDY #107875)
Transmitter & Receiver
Bearing Oil
(HUDY #106230)
TL
CA
CA glue
Threadlock
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.
EQUIPMENT INCLUDED
(HUDY #106210)
Premium Graphite Grease
OILOILOIL
* Kit includes smaller but sufficient amount of oil and grease to build the car.
600cSt (#106360)
HUDY Premium Silicone Oils
Tire Truer
(HUDY #102003)
Exhaust & Manifold - Set
(FX #639550)
Engine
(FX T300 #630100)
Bodyshell
Engine After Run Oil
(HUDY #106250)
One-Way Lube
(HUDY #106231)
Air Filter Oil
(HUDY #106240)
Silicone Diff Oil
(HUDY #106560 60.000cSt)
Silicone Diff Oil
(HUDY #106630 300.000cSt)

6
1. FRONT GEAR DIFFERENTIAL & SOLID AXLE
980210
P 2x10
335000 FRONT GEAR DIFFERENTIAL - SET
335010 COMPOSITE FRONT DIFF. CASE, COVER & 27T BELT PULLEY
335027 COMPOSITE TIMING BELT PULLEY 27T
335030 DIFF BEVEL & SATELLITE GEARS (2+4)
335040 COMPOSITE SOLID AXLE ADAPTER
335073 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - LONG - HUDY SPRING STEEL™ (2)
335080 DIFF PIN (2)
903206 HEX SCREW SFH M2x6 (10)
903258 HEX SCREW SFH M2.5x8 (10)
962051 WASHER S 5x10x0.2 (10)
964031 WASHER S 3.5x10x0.2 (10)
964050 WASHER S 5x15x0.3 (10)
971240 SILICONE O-RING 24x0.7 (10)
972050 SILICONE O-RING 5x2 (10)
980210 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
980210
980210
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)
#104002
HUDY AIR VAC – VACUUM PUMP - ON-ROAD

7
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 300.000cSt
Silicone oil 300.000cSt
980210
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
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. OIL
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)
#104002
HUDY AIR VAC – VACUUM PUMP

8
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
980210
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

9
1. REAR GEAR DIFFERENTIAL
962051
335030 DIFF BEVEL & SATELLITE GEARS (2+4)
335050 REAR GEAR DIFFERENTIAL - SET
335060 COMPOSITE REAR DIFF. CASE & COVER
335072 LIGHTWEIGHT DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2)
335080 DIFF PIN (2)
903258 HEX SCREW SFH M2.5x8 (10)
962051 WASHER S 5x10x0.2 (10)
964031 WASHER S 3.5x10x0.2 (10)
964050 WASHER S 5x15x0.3 (10)
971240 SILICONE O-RING 24x0.7 (10)
972050 SILICONE O-RING 5x2 (10)
980210 PIN 2x10 (10)
335072
335072
962051
980210
980210
903258
335060
971240 964050
964050
335030
335030
964031
335030
972050
972050
335060
335080
980210
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)
#104002
HUDY AIR VAC – VACUUM PUMP - ON-ROAD

10
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
980210
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 60.000cSt
Silicone oil 60.000cSt
DETAIL
Use tweezers to insert pin.
STEP ➎DETAIL
DETAIL
14.70g + 2.0g = 16.70g
OIL

11
1. REAR GEAR DIFFERENTIAL
GEAR DIFF ADJUSTMENT
DETAIL
Wait approx. 5min
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
Rotate
Push down
#335081
ALU DIFFERENTIAL PIN - HARDCOATED (2)
#104002
HUDY AIR VAC – VACUUM PUMP

12
2. REAR SUSPENSION
302663 COMPOSITE BALL JOINT 4.9MM - OPEN - V2 (8)
303122-K ALU SHIM 3x6x1.0MM - BLACK (10)
303123-K ALU SHIM 3x6x2.0MM - BLACK (10)
303241 BALL UNIVERSAL 5.8 MM HEX (4)
303454 BALL JOINT 4.9MM - OPEN (4)
332070 COMPOSITE ADJUST. BALL-BEARING HUB (4)
332071 COMPOSITE BALL-BEARING HUB (4)
332630 ADJ. TURNBUCKLE L/R 25 MM - HUDY SPRING STEEL™ (2)
333019 ALU LOWER BULKHEAD REAR RIGHT - BLACK - SWISS 7075 T6
333029 ALU LOWER BULKHEAD REAR LEFT - BLACK - SWISS 7075 T6
333039 ALU UPPER CLAMP REAR (L+R) - BLACK - SWISS 7075 T6
333064 GRAPHITE ROLL-CENTER BRIDGE
333083 GRAPHITE SHOCK TOWER REAR
333111 COMPOSITE SUSPENSION ARM REAR LOWER - HARD
333130 COMPOSITE REAR UPPER CAMBER LINK BALL JOINT 5.8 MM (4)
333311-H COMPOSITE UPRIGHT REAR FOR AERO DISC - HARD
333443 ALU ANTI-ROLL BAR COLLAR o2.2 (2)
333492 ANTI-ROLL BAR FOR BALL-BEARINGS - REAR 2.0 MM
333714 ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - FRONT - BLACK - RF
333723 ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - REAR - BLACK - RR
334015 ALU BRAKE STAND - BLACK - SWISS 7075 T6
334025 ALU 2-SPEED HOLDER - BLACK - SWISS 7075 T6 - SET
334041 BRAKE CAM POST - STEEL
334052 COMPOSITE BRAKE UPPER PLATE
334070 COMPOSITE 6x13x5 BALL-BEARING HUB (2)
334112 VENTILATED BRAKE DISK - LASER CUT - PRECISION-GROUND
334120 HARDENED STEEL BRAKE PAD - LASER CUT (2)
334132 BRAKE PAD “SLS” (2)
334142 ALU LIGHTWEIGHT BRAKE DISK ADAPTER - BLACK - SWISS 7075 T6
334180 ADJUSTABLE BRAKE PAD GUIDE PIN - HUDY SPRING STEEL™ (2)
335210 DRIVE AXLE - HUDY SPRING STEEL™
335250 ALU WHEEL HUB 12MM - BLACK (2)
335320 DRIVE SHAFT - 60 MM - HUDY SPRING STEEL™
335450 PUR®-REFINFORCED DRIVE BELT REAR 5.5 x 177 MM
335510 2-SPEED SHAFT - V2
335810 COMPOSITE BELT PULLEY 20T - 2-SPEED-CENTER
337253 COMPOSITE ADJUSTING NUT M10x1 WITH BALL CUP (4)
337258 STEEL PIVOT BALL 8.4 MM o3.3 L=25MM (2)
337314 REAR LOWER INNER PIVOT PIN (2)
343483-K ALU CUTTED ANTI-ROLL BAR COLLAR o2.3 - BLACK (2)
362315 ECCENTRIC BUSHING SET (2)
362650 BALL END 4.9MM WITH THREAD 6MM (2)
372651 PIVOT BALL UNIVERSAL 4.9 MM - HUDY SPRING STEEL (2)
901302 HEX SCREW SB M3x2.5 (10)
901303 HEX SCREW SB M3x3 (10)
901308 HEX SCREW SB M3x8 (10)
901316 HEX SCREW SB M3x16 (10)
901406 HEX SCREW SB M4x6 (10)
902306 HEX SCREW SH M3x6 (10)
902308 HEX SCREW SH M3x8 (10)
903306 HEX SCREW SFH M3x6 (10)
903308 HEX SCREW SFH M3x8 (10)
930508 BALL-BEARING 5x8x2.5 STEEL SEALED - OIL (2)
940508 BALL-BEARING 5x8x2.5 RUBBER SEALED - OIL (2)
940613 BALL-BEARING 6x13x5 RUBBER SEALED - OIL (2)
941016 BALL-BEARING 10x16x4 RUBBER SEALED - OIL (2)
960030 NUT M3 (10)
960032 NUT M3 (10)
965070 E-CLIP 7 (10)
981208 PIN 2x8 (10)
980210 PIN 2x10 (10)
335050 REAR GEAR DIFFERENTIAL - SET
331112 CHASSIS 3MM - CNC MACHINED - SWISS 7075 T6
BAG
903308
903306
903306
334041
334070
981208
901303
902308
941016
902308
332071
343483-K
903306
333723
333443
303454
302663
902308
303122-K
337253
941016
335210
333130
303122-K
333083
903308
333019
303123-K
901308 337314
362315
335050
333714
334180
332070
902306
333064
902308
901303
930508
901302
362650
372651
303241
337258
941016
333311-H
980210
335320
334025
334070
940613
901308
332630
901316
901303
335250
335450
333039
334015
940508
940613
940508
334052
334120
334112
901406
333029
965070
335810
334132
960030
903308
333039
902308
334142
335510
331112 903306
903308
333111
303241
333492
902308
960032

13
REAR DOWNSTOP
ADJUSTMENT
2. REAR SUSPENSION
903308
SFH M3x8
901308
SB M3x8
1.3mm
2.5mm
REAR ARMS
1.3mm
2.5mm
2x
REAR SUSPENSION ARMS
#333110 MEDIUM OPTION
#333111 HARD INCLUDED
#333111-G GRAPHITE OPTION
903306
SFH M3x6
940508
BB 5x8x2.5 BEARING WITH BLUE COVERS
NOTE ORIENTATION
NOTE ORIENTATION
NOTE ORIENTATION

14
2. REAR SUSPENSION
902308
SH M3x8
902308
SH M3x8
BEARING OIL
BEARING OIL
NOTE ORIENTATION
NOTE ORIENTATION
Both bushings must be in same position. #335452
LOW FRICTION DRIVE BELT
REAR 5.5 X 177 MM
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.
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.
2mm
903306
SFH M3x6
DETAIL
With hole outwards.
NOTE ORIENTATION
303123-K
SHIM 3x6x2
Composite eccentric bushings
INITIAL SETTING
1 10.5 0.50
Composite eccentric bushings
INITIAL SETTING
1 10.5 0.50

15
2. REAR SUSPENSION
2x 2x 2x
902308
SH M3x8
902308
SH M3x8
902306
SH M3x6
3x6mm
3x8mm
DETAIL
NOTE ORIENTATION
6mm THREAD
2.0mm
approx. 26mm
DETAIL
Install the pivot balls with Professional
Multi Tool (HUDY #183011).
3x6mm
3x8mm

16
2. REAR SUSPENSION
930508
BB 5x8x2.5
902308
SH M3x8
BEARING OIL
BEARING WITH STEEL COVERS
REAR ANTI-ROLL BARS COLLARS
#333488 1.8mm OPTION
#333490 2.0mm OPTION
#333492 2.2mm INCLUDED
#333494 2.4mm OPTION #333442 + 343484-K
#333496 2.6mm OPTION #333442 + 343482-K
#333443 + 343483-K
INCLUDED

17
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
DETAIL
WHEEL HUBS
#335250 0mm INCLUDED
#335251 -0.75MM OPTION
#335252 +0.75MM OPTION
REAR UPRIGHT
#333311 MEDIUM OPTION
#333311-H HARD INCLUDED
Set the bar into the center, remove the play in the
bushings, and tighten the set-screws fully.
VIEW
CENTER
DETAIL
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
980210
P 2x10
➊
➋
➌
901303
SB M3x3
901302
SB M3x2.5
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.
3x2.5mm
3x2.5mm
3x3mm
#337252 ALU NUT
#337254 COMPOSITE CUP

18
REAR CAMBER
ADJUSTMENT
2. REAR SUSPENSION
DRIVE SHAFT
#335320 HUDY SPRING STEEL™ INCLUDED
#335321 ALU OPTION
#335305 CVD - SET OPTION
303122-K
SHIM 3x6x1
960032
N M3
Ensure that both suspension
assemblies move freely.
Ensure that both suspension
assemblies move freely.
1mm SHIM
(DO NOT use for
initial setting.)
OUTSIDEINSIDE
1mm
M3
10.2mm
90° angle difference between the ball joints.
Use ball joints WITH DOT.
INITIAL SETTING
4.0mm 4.0mm
DETAIL
ALU CVD-SET
902308
SH M3x8
NOTE ORIENTATION
303241
BALL 5.8
Install the pivot balls with Professional
Multi Tool (HUDY #183011).
BALL JOINT WRENCH
(HUDY #181110).

19
2. REAR SUSPENSION
SLS PADS FACE TOGETHER
903308
SFH M3x8
940613
BB 6x13x5
903306
SFH M3x6
960030
N M3
STEEL
PAD STEEL
PAD
SLS
PAD
NOTE ORIENTATION
HOLE - OVAL
HOLE - ROUND
8.0mm
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.
#372176
SPRING 4.0 COILS 3.6x6x0.5mm
C=1.5 - GOLD (SOFT)
The springs can be used only in combination
with #334111 Ventilated Brake Disc and
#962032 Shims 3x6x0.2mm.
NOTE ORIENTATION
NOTE ORIENTATION
Hole on outer side.
BEARING OIL
BEARING OIL
3x6mm
3x8mm

20
2. REAR SUSPENSION
940508
BB 5x8x2.5
981208
P 2x8
902308
SH M3x8
901303
SB M3x3
965070
C 7
➊
➋
901406
SB M4x6
➍
STEP DETAIL
DETAIL
➊
➋
➍
➌
Tighten set-screw
onto flat spot.
NOTE ORIENTATION
#334111
VENTILATED BRAKE DISC PRECISION-GROUND
LIGHTWEIGHT
#335511
2-SPEED SHAFT - LIGHTWEIGHT
BELT PULLEY 20T
BELT PULLEY 20T - 2-SPEED CENTER
BELT PULLEY 18T - 2-SPEED SIDE
BELT PULLEY 19T - MID-CENTER
BELT PULLEY 25T - MID-SIDE
BELT PULLEY 26T - MID-SIDE
#335801-O
LOW FRICTION COMPOSITE BELT PULLEY SET - GRAPHITE
BEARING WITH BLUE COVERS
BEARING OIL
Pin must protrude equally
on both sides of camshaft.