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“The XRAY T4 has been our most successful touring car platform, one that the racing and R&D teams continue to improve year-after-year to bring you the finest and best-performing electric touring car in the world. XRAY’s dedicated passion for perfection never stops. At the core of every XRAY car is our passion for high-performance racing cars, dedication for absolute perfection, smart design approach and heritage of our extensive experience and achievements.”

Martin Hudy
XRAY designer

”Following thousands hours of track-testing with the factory team around the world and thousands of hours in R&D and prototyping, the result is an outstanding race car that is a masterpiece manufactured and machined in-house in Europe, with the extreme precision you would expect from XRAY. I am very proud to present you the new T4.”

Martin Hudy
XRAY designer

High Performance.

Since the release of the first XRAY touring car in 1999, XRAY has been a driving force in the 1/10 electric touring car racing scene. Continuous development and evolution of the XRAY product line has led to ever-increasing performance.

High Performance.

With countless wins in multiple classes at the local, regional, national and international levels, XRAY has become the standard by which touring cars are measured.


The craftsmanship, durability, and performance of XRAY kits have become legendary. Be part of the family, live the heritage.

ETS Champions 2016.

XRAY has been the first team to sweep and win the overall championship title in all the three classes at the ETS including the 1/10 modified, stock and formula setting a new record to beat. Congratulations to Bruno Coelho and Jan Ratheisky for their ETS 2016 titles.

ETS Champions.

The ETS series has become the most competitive 1/10 electric touring car racing series in the world. It is not only the most highly-attended race, but also the most challenging as all teams from around the world put their maximum attention and focus on this series making the competition level extremely high like at a World Championship. A total of 6 ETS races are run during the season.

XRAY has been one of the most successful teams in that it dominates the ETS with the highest share of cars in the field, and also with the number of victories in the hotly-contested Stock class. Team XRAY has won the overall ETS championship for the last 5 years in the row: 2012, 2013, 2014, 2015 and 2016.

World Championship.

The all-new T4’17 had a stunning debut at the recent 2016 World Championship in Beijing, China with Bruno Coelho taking the TQ honours by winning 5 out of 6 qualifying rounds and gaining the Vice-champion title.

Racing Team.

Team XRAY continues its winning streak at major international & national races all around the world! Just recently, Team XRAY added plenty of titles including European Champion, ETS Champion, USA Champion and many more to the already impressive list of achievements, which includes more than 300 national titles from around the world, 45 titles from the USA National Championship, and multiple wins at other famous races such as DHI, TITC, LRP, IIC, ETS, Snowbirds, and many others. Be part of one of the most successful racing teams in the world!

Development Team.

The T4 is the world’s most popular electric touring car thanks to ongoing development of the platform; year after year we bring you the best handling & performing touring car. The T4 is designed BY racers FOR racers. No matter if you race in Modified or Stock classes at local, regional, national or even World Championship level… the T4 takes you to the Winners Circle.

T4 platform development is quite unique, as there is a wide range of skilled team drivers from all around the world having a direct influence on the development of the platform. All ideas collected from the team are analyzed, then are tested in prototype stage by the team under all track & racing conditions around the world to ensure that in the end only the best improvements are integrated into the new version of the car. Do you want to be part of the T4 development team? Grab your T4 and let us know what you think!

2017 All-new Features

• All-new chassis design
• All-new In-Line Flex adjustment
• All-new servo mount system
• All-new floating steering system
• All-new Ackermann positions
• All-new graphite arms
• All-new layshaft bulkhead
• All-new motor mount bulkhead
• All-new motor mount plate
• All-new bumper
• Improved traction
• Improved steering characteristics


The all-new T4’17 chassis was redesigned to fit the all-new inline chassis flex system. The new design of the chassis now allows the mounting of the new servo holder into the absolute center of the chassis, ensuring perfect balance.

The chassis features new pre-drilled holes for the new centering pins of the servo holder, which helps to ensure that the servo will not move even under hard impacts or collisions.

The all-new chassis also includes new positions for the alu steering posts of the dual servo saver, resulting in new Ackermann positions to make the car even easier to drive.

To guarantee perfectly- equal chassis flex characteristics, the motor cutouts are now milled on both left and right sides.


The ultra-narrow chassis is only 86mm wide and with a variety of chassis flex adjustments generates the exceptional traction and gives excellent steering characteristics. The new chassis design helps the T4’17 to be suitable for all track conditions.

The 2.2mm thick chassis is CNC-machined from premium-grade graphite material. The chassis features pre-drilled holes for optional parts such as chassis weights, graphite motor guard, graphite adjustable battery holder, and battery strap.

Weight distribution and balance characteristics were all primary design considerations while engineering the new car to allow the weight to be moved as close as possible to the chassis centerline in order to maintain optimal balance.

In-Line Chassis Flex.

The all-new XRAY In-Line Chassis Flex is one of the most significant and important improvements of the T4’17. This new adjustability is very intelligent and is an extremely helpful set-up feature that helps to adjust chassis flex for various track conditions.

With the all-new servo mount and motor mount design, the new chassis reinforcement graphite brace can be installed in 5 different flex adjustment configurations. The stiffer the In-Line chassis flex is set, the better the steering response as well as in-corner steering.

Central Servo Mount.

The new central servo mount is now mounted to the chassis using 3 screws and 2 centering pins (which are inserted into the chassis and into the graphite servo holder to help to eliminate servo movement in hard impacts or collisions).

The Swiss 7075 T6 central servo mount is now positioned in the absolute center of the chassis for perfectly-balanced flex characteristics. The central servo mount also includes an extra hole for the in-line chassis reinforcement brace.

The servo mount includes an extra hole where the battery backstop screw can be mounted, allowing adjustment for battery width.

Floating Steering System.

The all-new, unique floating servo holder is now standard in the T4’17. The floating steering system is disconnected from the chassis and works fully independently without affecting flex. This makes the car easier to drive in high-traction conditions, and chassis roll is reduced especially when driving through the curbs. The car also handles better on bumpy tracks.

In combination with #302570 Steering Plate, you can adjust 4 different flex characteristics. Using the graphite steering plate, chassis flex is medium; when using the steering plate with aluminum stand, flex becomes stiffer for more aggressive handling and increased steering.

Thanks to the unique design of the servo holder, changing the flex of the steering system is quick & easy. There is no need for other parts, and there is no need to assemble/disassemble the servo holder.


The dual-arm steering system was moved 1mm further back on the chassis to give better Ackermann adjustment possibilities. The new Ackermann positions make the car easier to drive and control, especially in high-traction conditions.

Graphite Arms.

The graphite suspension arms generate more overall traction, making the car easier to drive and increasing stability. It is no surprise that they have been long-term used by factory team drivers as well as regular customers in numerous different track conditions. The new T4’17 now includes graphite suspension arms as standard parts, providing the best available performance straight out of the box.

The specially-formulated graphite composite material results in a very lightweight suspension arm that can withstand the rigors of high-performance racing. Features include a single optimized shock mounting position and integrated anti-roll bar mounts. The graphite arm is same size and geometry as the standard 1-hole suspension arms.

The graphite arms include 4 holes to quickly and easily mount optional graphite reinforcement plates.

Layshaft Bulkheads.

The all-new layshaft and motor mount bulkheads are now part of the Top Deck Flex adjustment. The new bulkheads are 1mm lower which allows better flex characteristics of the car as the top deck does not touch the bulkheads if screws are not used. If the screws on the layshaft bulkheads are used, shims are inserted between the bulkheads and top deck. This new system allows flex adjustment to help set up the car for any track conditions.

There are 3 different Top Deck Flex adjustment alternatives:

Motor Mount.

The T4’17 motor mount plate has an all-new design and concept.

The new motor mount plate – which is part of the motor mount – features a new extra hole for In-Line Chassis Flex adjustment. The motor mount plate is connected to the chassis via an M3 nut and an extra countersunk screw that can be placed ahead of the nut if more reinforcement is needed. Additionally, the nut can be removed and 1 of 2 holes behind the nut can be used as extra flex adjustment options.

The motor mount bulkhead is connected to the chassis by 2 screws under the layshaft and the front mounting screw is now positioned more frontwards ahead of the motor. The front mounting screw is a button-head type which is more tweak-free compared to a countersunk screw.


The 2017 front foam bumper is all-new in both design and material.

The bumper is now larger for a perfect fit to all the various bodies without any extra fill-in foam required. The all-new foam material was specially mixed for use in the bumper, meaning it is very rigid and strong while still being extremely lightweight and highly resilient.

The lower composite bumper mount and upper bumper holder are molded from rigid composite material that is designed to withstand hard impacts or collisions.

Aluminum Bulkheads.

The T4 platform – with centralized weight placement – features the smallest and lightest bulkheads ever, positioned more towards the chassis centerline to provide maximum traction & steering, and improved balance.

To accommodate the ball-bearing anti-roll bar mounting system, the bulkheads feature a special anti-roll bar mounting area where the anti-roll bar mounting collars are installed.

All bulkhead parts are CNC-machined from premium Swiss 7075 T6 aluminum and have been designed to provide the lightest and strongest possible support framework for the car.

The bulkheads are anodized in a distinctive orange color. (Note: Color may vary slightly between products.) XRAY’s legendary attention to detail is noticeable in all the precisely chamfered edges.

Upper Clamps.

The aluminum upper clamps allow for very quick & easy roll center adjustment with 4 different roll center mounting positions. All upper clamps are identical and can be used both front & rear.

Made from premium Swiss 7075 T6 aluminum, orange anodized.

Top Deck.

The shape of the rear portion of the top deck has been specifically designed to achieve maximum traction and in-corner steering and the shape allows for easy access to the pinion.

The top deck is machined from premium-grade 2.0mm graphite. An optional belt tensioner can be mounted to the top deck.

Anti-roll Bar System.

The wobble-free anti-roll bar system is mounted to the front & rear bulkheads via bearings from outside for extra-smooth movement and quick & easy changes and adjustment. The roll bar turns in ball-bearings for maximum precision and free movement. Anti-roll bar height is adjustable via a screw.

Anti-Roll Bars.

The complete range of different anti-roll bar thicknesses is designed to work with the ball-bearing roll bar mounting system. Front 1.4mm and rear 1.3mm anti-roll bars are included as standard in the kit. Anti-roll bars have laser-engraved stripes (corresponding to bar thickness) for easy identification.

Proven Suspension Geometry.

From the narrow arms, through the tiny front and rear suspension blocks, to the small and robust steering blocks, every suspension part has been specially designed to provide responsive racing characteristics in all racing conditions.

Over the years XRAY has successfully gained and utilized extensive suspension geometry knowledge and self-developed suspension stiffness technology, which have been utilized when designing suspension parts.

The ultra-lightweight suspension parts are molded from a special composite material that makes the parts very light yet very durable to withstand the rigors of high-performance racing.

ARS™ System.

The kit includes both standard and Active Rear Suspension (ARS™) rear suspension. ARS™ offers great adjustment possibilities and driving characteristics.
ARS™ suspension consists of: suspension arms, graphite 0° C-hubs for optimal flex characteristics, hard steering blocks, and ARS™ linkages which connect suspension holders with the suspension block. The angle of ARS™ linkages –set by adding/removing shims on the suspension block and suspension holder – changes the toe-in characteristics of the rear tires during chassis roll.

Suspension Holders.

Aluminum suspension holders feature Integrated Suspension Settings (ISS) which allow super-fast & easy suspension geometry setting.

Suspension holders allow more durable mounting of the suspension arms. With the suspension holders, the geometry of the car does not change even under hard crashes. Thanks to the mounting system, arms move very freely to give higher traction and the car feels smoother in corners which also positively influences steering characteristics.

Suspension holders are CNC-machined from premium Swiss 7075 T6 aluminum and have been designed to provide the lightest and strongest possible support framework for the car.

Suspension Holders.

There are two types of the suspension holders, each specifically designed and chosen to provide the required characteristics – stability, traction, and flex:

•Front of the FRONT suspension – 1-piece

•Rear of the FRONT suspension – 1-piece for stability, easy to drive in all conditions but especially under high-traction conditions. Optional 2-piece holders give increased in-corner steering, and are recommended for use on asphalt and low-traction track conditions.

•Front of the REAR suspension – 2-piece for maximum rear traction. Optional 1-piece provides increased rotation of the car in high-traction track conditions.

•Rear of the REAR suspension – 1-piece for more steering and better rotation. Recommended for high-grip conditions only, as it decreases rear traction. When using ARS™ suspension, the alu rear lower 1-piece suspension holder must be used with #302201 alu brace post for ARS™.

ARS™ Suspension Holders.

rear 1-piece suspension holder for ARS™ system ensures strength in crashes, as well as adding extra roll center positions for the ARS™ suspension.

CNC-machined from premium Swiss 7075 T6 aluminum and anodized in a distinctive orange color. XRAY’s legendary attention to detail is noticeable in all the precisely chamfered edges.

I.S.S™ Suspension Bushings.

Using eccentric suspension bushings inserted into aluminum suspension blocks, as well as additional use of suspension shims and suspension parts, the T4 suspension geometry is completely adjustable including:

Suspension Arms.

Suspension arms feature the innovative SFATM (Suspension Flex Adjustment). Whether you are racing in low or high-traction track conditions, you can easily adjust the flex of the arms as appropriate by quickly adding optional graphite stiffeners which will change the stiffness of the suspension. The arms include 4 holes where the graphite stiffeners are mounted and the areas around the holes are strengthened for maximum durability.

Graphite Stiffeners.

Innovative and unique SFATM graphite stiffeners allow for super-quick suspension flex adjustment to easily adjust the traction of the car in various track conditions.

Whether you drive in low- or high-traction conditions, with the smart graphite stiffeners you can very quickly adjust your car to suit it to current conditions. At the beginning of a race event when traction is low, the arms are used without the SFATM graphite stiffeners. When the traction increases, the suspension can easily be made stiffer by mounting the SFATM graphite stiffeners for more stability and easier driving characteristics. The graphite stiffeners give the car maximum stability in chicanes and allow for easier and smoother steering.

Made from 1.6mm thick high-quality CNC-machined graphite material, the stiffeners can be easily mounted or removed by only a few screws whenever needed.

The stiffeners are available only as an optional part.


The C-hubs in the T4 are also carried over from the T3 platform and feature large openings for quicker & easier assembly/disassembly of the CVDs/ECS. The entire CVD/ECS assembly can be easily inserted/removed through the C-hub without the need for disassembly. The large openings prevent collision of CVD/ECS with C-hub in serious crashes.

The C-hubs are available in all standard caster angles (2°, 4°, 6°) and are also available in 4 different hardnesses that are optimized for particular racing conditions.

Steering Blocks.

The small and tough steering blocks each feature two Ackermann positions. The front steering blocks also feature small but robust 5x10x4mm ball-bearings to minimize unsprung weight.

The steering blocks are available in three different hardnesses, which are optimized for particular racing conditions.

Rear Uprights.

Hard "H" rear uprights are included to improve the stability of the car and to increase cornering speed of the T4.

The rear uprights feature 0° toe to ensure stability and prevent suspension geometry changes in hard crashes. There are two different roll center positions on the rear uprights, and roll center positions can be easily adjusted by adding shims between the upright and the turnbuckle ball joint.

The rear uprights feature small but robust 5x10x4mm ball-bearings to minimize unsprung weight.

The rear uprights are available in three different material formulations that were specifically blended for particular racing conditions. A medium “M” and graphite “G” hardness rear upright is available as an option.

1-hole uprights were developed as an optional fine-tuning part to compliment the standard 2-hole uprights for high-traction tracks where more roll of the car is desired. These 1-hole uprights provide an additional option versus the standard 2-hole upright when the outer hole does not allow enough roll, and the inner hole creates too much roll.

Dual-arm Steering System.

The dual-arm steering system is supported by 6 ball-bearings and runs on aluminum stands. Ackermann is easily adjusted by inserting shims between the steering plate and steering rods. The steering system features a lower mounting position for the steering linkage, which makes the car handle easier going into corners. More aggressive handling is easily adjusted by inserting shims between the steering blocks and steering rods.

The design of the front lower suspension holder allows easy access from the front of the car for quick & easy Ackermann adjustment.

Steering Plate.

The steering plate provides increased steering into the corner and makes the car more stable and easier to drive in chicanes. To achieve the improved steering characteristics, the distance to the steering linkage mounting was changed to 8.5mm. Machined from premium Swiss 7075 T6 aluminum material, and orange anodized.

Servo Saver.

The hugely-popular XRAY servo saver was improved and updated for the T4. Additional positions on the servo saver were added to make steering linkage adjustment easier. The servo saver consists of 4 springs which makes the servo saver strong enough to provide the precise steering racers demand, while still being flexible enough to prevent servo damage in hard crashes. The servo saver has interchangeable bushings to fit most popular servos.

Adjustable Top Deck.

The top deck design allows installation of an optional aluminum stand which changes the car’s flex characteristics. By adding the reinforcement stand, the rear layshaft bulkhead screws are removed which generates more traction and makes the car easier to drive but results in more on-power push. Recommended for low- or high-traction conditions. For low- and medium-traction conditions, it is recommended to use the top deck without the aluminum stand.


The ultra-efficient and well-proven drivetrain has been carried over from the T3 platform. The drive ratio is suitable for current high-performance brushless motors (stock or modified) and LiPo batteries. Both the front solid axle and the rear gear diff feature 38T pulleys and the central layshaft features 20T pulleys for an efficient internal ratio of 1.9.

ECS Drive Shafts.

The Extra-Strong ECS drive shafts are included in the kit as a standard part. The legendary XRAY ECS drive shafts equalize the speed between the drive shaft and the wheel. With a unique 2-piece joint between the axle and the wheel, the same extreme wheel turning angle is divided into two shallower angles without joint binding. This means that regardless of cornering speed and wheel angle, the inner wheel will not bind or vibrate. Drive through the corner is more stable, more precise, and easier to drive.

With the ECS drive shafts, wheel vibrations and noise are decreased to minimum, steering is increased, and cornering speed & smoothness are noticeably increased.

Drive shafts are exclusively manufactured from special world-renowned, top-secret, self-developed HUDY Spring Steel™. The drive shafts are strategically lightened – see the hollow end of the dog bone – to guarantee the lowest possible weight without compromising strength or durability.

These specially-lightened drive shafts can only be manufactured from special HUDY Spring Steel™ which was developed for extreme racing conditions. The drive shafts have been additionally hand-ground for maximum precision and to provide true rotation and unbinding drivetrain operation.

Rear Drive Shafts.

The T4 features 50mm long lightweight aluminum drive shafts machined from premium Swiss 7075 T6, hard-anodized and black-coated for stylish looks. The aluminum drive shafts are designed for use in the rear.

Drive Axles.

To reduce rotating weight, the rear CVD drive shafts feature super-lightweight wheel axles which have the outer diameter specially ground to remove the material while keeping the same strength thanks to the use of HUDY Spring Steel™. The lightweight drive axles reduce rotating mass up to 35% compared to regular drive axles.

Alu Hex Hubs.

Ultra-lightweight wheel hex drive hubs are CNC-machined from 7075 T6 black-coated aluminum. These ultra-true hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting.
Optional offsets are available (-0.75, +0.75, +1.5mm).

XRAY Gear Differential.

The T4 gear diff increases on-power steering which is needed on nearly all types of tracks, and is ideal for both carpet and asphalt tracks. The gear diff includes a composite case and cover with pulley. Differential gears are made from tough composite material, precision-molded composite gears combined with light aluminum drive shafts, which create a lighter and super-smooth gear differential. Another key advantage of the gear diff is that it is maintenance-free. When the diff is correctly built, there is no need for maintenance for a very long time… no need for frequent oil changes, and no leakage due to the superior sealing system.

XRAY Solid Axle.

Rotating mass is one of the most significant influences on the performance of an RC racecar.

The T4 features a unique lightweight composite XRAY Front Solid Axle. The Front Solid Axle has a very stiff and ultra-lightweight structure that was achieved by molding the entire solid axle from XRAY's own self-formulated composite material.

Outdrives are fully exchangeable which allows quick & easy servicing, while the unique drive shaft connection - eliminating the former drive shaft blades - enables direct power transfer to the axle and eliminates play between the drive shaft and outdrives, improving steering precision and increasing overall steering.

Centrally-positioned Layshaft.

The spur and pinion gears have been aligned along the absolute centerline of the chassis to optimize the placement of the polar moment and ensure ideal balance of the drivetrain components.

Alu Middle Layshaft.

The aluminum layshaft is strategically CNC-machined to minimize rotating weight without compromising strength or integrity. The hollow layshaft is perfectly round with zero run out, eliminating drivetrain vibration and producing a positive balance. Composite pulleys key solidly to the layshaft.

Drive Belts.

The 2-belt 4WD drivetrain concept provides maximum efficiency and highest performancedrive belts for ultra-high durability. Narrow (3mm) front and rear drive belts have been specially ground for minimal thickness and flexibility.

Super Low Profile (SLP) Shocks.

SLP shocks were developed to lower the CG of the car to the absolute maximum in order to improve stability. With the SLP shocks the T4 stays flatter, making it easier to drive in chicanes and more resistant to traction roll, letting you carry more speed through high traction sweepers.

The shock bodies are CNC-machined from premium Swiss 7075 T6 aluminum and hardened to ensure maximum life. The shocks consist of a shortened shock body but with a larger diameter to retain the same volume of oil as the previous, longer T3 shocks.

Super Low Profile (SLP) Shocks.

Pistons were designed and produced to accommodate the Super Low Profile (SLP) shock absorbers. The piston set includes 3- and 4-hole pistons with 1.0, 1.1, and 1.2mm diameter holes. The pistons are molded using special methods and composites to ensure extreme roundness, while maintaining maximum stiffness and durability.

Super Low Profile (SLP) Shocks.

Both front are rear shock absorbers have front and lower ball joints purposefully larger to provide a little more play of the shocks once mounted to generate more traction.

Shock Springs.

To make the car more stable and easier to drive under various track conditions, the 2.5C linear springs were chosen as the basic setting on both front and rear shocks. The 2.5C linear springs provide the best balance between steering, traction, stability, and response.

The 4S springs - like all other XRAY springs - are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.

Shock Towers.

To maximize the effect of the SLP shocks, both front and rear shock towers were completely redesigned and lowered by 15mm to help move the CG as low as possible. Machined from premium-grade 3.0mm graphite, the shock towers are smaller, lighter, more compact and, after vigorous testing, have been race-tuned to increase on-power steering.

Bearing Holders.

The adjustable bearing eccentric holders were also updated to mate with the new, narrower bulkheads. As with previous XRAY designs, both front and rear bulkheads feature integrated belt-tension adjustment through the use of adjustable bearing eccentric holders, eliminating the need for a separate belt tensioner while reducing friction and improving drivetrain efficiency.

Integrated Belt Tension Adjustment.

As with previous XRAY cars, both front and rear bulkheads feature integrated belt-tension adjustment through the use of adjustable bearing eccentric holders, eliminating the need for a separate belt tensioner. These eccentric holders were modified to fit the new super narrow position of the bulkheads, while allowing you to still use your existing differentials and spools. All ball-bearings turn in composite hubs to reduce friction and improve drivetrain efficiency.

Diff Height Adjustment.

Both front and rear bulkheads feature independent diff height adjustment. By rotating the diff eccentric holders, the height of the diff can be adjusted by 1mm. Optional eccentric holders with 2mm offset are available which allows diff height adjustment of 2mm.

Premium Ball-Bearings.

A full set of 24 high-speed, blue-sealed and steel ball-bearings are used throughout the drivetrain, steering and anti-roll bars to ensure maximum efficiency. All of the bearings are degreased and oiled with Aero Shell® Fluid 12 for maximum smoothness and long life. The bearings used in steering blocks and uprights have been specially selected to reduce unsprung weight and maximize drivetrain efficiency.

Aluminum Turnbuckles.

Aluminum adjustable turnbuckles used in the T4 are CNC-machined from 7075 T6 material with a stylish black coating. These turnbuckles are used for front and rear upright linkages as well as for the servo saver and ARS™ system. The aluminum turnbuckles are lighter than steel to help decrease the overall weight of the car.

Bumper Upper Holder.

Composite bumper upper holder brace helps to reduce chassis breakage in serious crashes. The composite bumper upper holder brace is mounted on the top composite upper holder for the bumper. The brace matches the shape of the layshaft bulkhead so if a crash occurs, the brace touches the bulkhead and protects the front of the chassis from breakage.

Body Posts.

Beefy 6mm thick body posts are made from special composite material that provides maximum strength but sufficient flex to reduce body post breakage in hard crashes or if the car flips over. The body supports are rounded to have a better fit and provide better support to the car body.

For ultimate tuning and adjustment, XRAY offers optional body height adjustable body posts which allow the independent front & rear body height adjustment by +1mm or +2mm.

Battery Holders.

Smart battery holders are specifically designed for LiPo batteries and are reinforced for harder impacts. The battery holders prevent the batteries from moving under racing conditions and crashes.


Adjustment Possibilities.

The extensive and impressive range of adjustment possibilities includes: ARS (Active Rear Suspension™), caster, camber, toe, anti-dive, anti-squat, ride height, downstops, track-width, lower roll center, upper roll center, roll center positions, steering roll center, wheelbase, Ackermann, optional belt-tension adjustment, adjustable shocks, adjustable rear diff and adjustable optional front XRAY Multi-Diff™.

XRAY Set-up Book.

The new T4 retains the title of the most adjustable electric touring car in the world. Whether you are a hardcore racing fanatic or a club-level sportsman, you can very easily adjust the T4 to suit your racing style, race track type, and all track conditions. The highly-acclaimed XRAY Set-up Book features more than 50 pages of high-quality pictures and easy-to-read and understand RC car set-up explanations. Whether you are a novice driver or an experienced racer, you can easily learn many set-up tips & tricks and improve your set-up skills, ultimately translating into improved racing performance with your T4. The XRAY Set-up Book is available for download exclusively at

Chassis Balance.

Chassis design focuses on balanced weight distribution and weight transfer. The chassis features pre-drilled holes for additional weights for optimum car balancing. Centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880.

Graphite Grease.

The T4 includes premium HUDY Graphite Grease which is a high-performance, advanced-technology semi-fluid lubricant which incorporates both extreme pressure additives and finely-dispersed graphite for load carrying. It is intended primarily for the lubrication of rotating parts and loaded gears. In addition to providing outstanding load carrying, it is formulated to have excellent adhesion and resistance to "fling-off" under extreme conditions. The grease reduces wear and increase the parts life. HUDY Graphite Grease.

Silicone Oils.

HUDY Exclusive Silicone Oils are manufactured in Europe and each batch is laboratory tested and calibrated to ensure the highest possible consistency and quality from batch to batch. Based on the industry-standard cSt rating, the new line of oils will be easy to identify, adjust, and feel.

When following any set-up sheets by XRAY or XRAY team drivers, you can be sure that the oils you will get for your car are exactly same as those used by the factory racing team, thus ensuring very exacting set-ups and handling.

HUDY Chem Series.

XRAY Instruction Manual.

XRAY instruction manuals have become the industry standard, being simply the best manuals you will ever get with an RC model car. Whether you are a first-time builder or an experienced racer, all the instructions are straight-forward and easy to understand. The full-color Instruction Manual contains large 3D illustrations that show all assembly details in the clearest possible way.

XRAY VIP Customer Treatment.

Owning an XRAY model racing car is an experience on its own. Not only will you own the most premium luxury model racing car in the world, but you will also become a member of the prestigious family of XRAY owners with direct support and service from the XRAY factory. XRAY brings you the most up-to-date RC Web site on the Internet, with daily racing news and latest product developments. If you have any questions, problems or comments, you can ask the XRAY Support Team or any XRAY Factory Team Driver on the XRAY Support Forum. You can even upload your own set-up sheets or download from the thousands of different set-up sheets available from all around the world at the exclusive XRAY Virtual Set-up Sheet Database, the world’s largest set-up sheet database. And that is only the start of the VIP treatment you get by joining Team XRAY.