XRAY XB2 has been successful since its earliest versions released several years ago. From local clubs to international competitions, the XB2 has achieved success at all levels of racing including winning the ROAR Nationals.

Designed, developed, and fully manufactured in-house at the XRAY factory in Slovakia, Europe, using the most high-tech German and Swiss machines and premium European materials, crafted with XRAY's legendary attention to detail by our artistic production specialists. The XB2 is truly a masterpiece. 

The XB2 platform works at the highest competition level in any track conditions, whether it be super-low-traction dusty tracks, medium-traction, or super-high-traction carpet or astro turf; there is an XB2 for you that will handle flawlessly in any of these conditions.

There are two different XB2 kits to choose from – Carpet Edition and Dirt Edition, both built on the same platform with full compatibility with interchangeable parts.

The Carpet Edition is designed for medium to very-high traction conditions, while the Dirt Edition is designed for very-low to medium traction conditions.

The Uni-Platform™ allows either version of the XB2 to be tuned or converted to suit any track conditions with only a few additional parts.

A completely new and improved one-piece chassis design with a wider rear section improves traction and stability on all surfaces.

The enhanced flex characteristics from the wider rear section improve overall handling.

CNC-machined from high-quality 2.0mm Swiss 7075 T6 aluminum for strength and durability.

The centerline cut-out is now connected to the milled area for the electronics plate, specifically to route the sensor cable underneath the battery for a cleaner electronics installation.

Both Carpet and Dirt version include the 2.0 mid-length chassis. This mid-length was tested across all surfaces and has shown to be the best choice for the majority of track conditions. The 2.0mm thickness provides enhanced traction and steering response for all surfaces.

The chassis features more milled out areas that enhance the flex characteristics and improve handling, with additional material removed in front of the transmission for the lowest motor placement possible and lowest CG.

The bottom aluminum Flat Chassis Brace is completely new and XRAY’s innovative concept in the off-road category to adjust flex to match the traction levels of the track. This brace is mounted directly onto the chassis and is connected with the rear gearbox and RF suspension holder.

The Flat Chassis Brace is significantly lower, lighter, and allows for extremely simple yet powerful flex adjustments.

The flex of the brace is adjustable by adding or removing screws to create the perfect flex characteristics for any conditions.

Two types of Flat Chassis Braces are available, each one specifically for either the 5 or 3 gear transmissions.

Redesigned longer side braces match the new chassis design.  The longer braces extend the longitudinal chassis flex control to improve consistency on the track.

The left side brace also allows for a fan to be mounted directly to the brace for enhanced motor cooling.
The side braces support the one-piece chassis design and connect with the front end. The flex of the side braces was optimized to improve front stability & rear traction.  The braces feature several mounting holes for the battery holders to provide sufficient range of battery position choices.

The side braces are available in two different hardness alternatives. Both Dirt and Carpet edition comes with medium stiffness and optional Graphite braces are suggested for extra high traction conditions.

The tough composite side braces also work great for using double-sided Velcro™ tape to mount the body to the chassis and seal against dirt.

XRAY presents a unique Universal Gearbox platform design that allows using either the updated 3 gear 3G Gearbox or the new optional 5 gear 5G Gearbox without changing the chassis plate of the Carpet or Dirt version of the XB2.

Updated 3G Gearbox integrates with the lower Flat Chassis Brace. The weight bias of the 3G transmission creates a balance between steering and stability that is well suited for a wide variety of track conditions on dirt, clay, turf or carpet.

The 3G Gearbox is included in both XB2C and XB2D, with the universal design allowing easy & fast changes between 3G and optional 5G without changing the chassis.

Super-narrow, ultra-low CG gearboxes (LCG) features quick & easy diff access. The narrower design of the gearbox reduces weight and moves all parts closer to the chassis centerline.

Both Carpet and Dirt versions come with unique 2-pad slipper assemblies that share the same top shaft, slipper pads and spring nut.

The XB2C includes the ventilated slipper plates to provide additional cooling to dissipate the excess heat created on carpet.

The XB2D includes solid slipper plates with larger engagement area for smoother slippage to help generate more traction.

Carpet tracks are typically very high traction, and the minimal wheel spin places higher stress on the slipper components and benefits from the additional cooling from the ventilated slipper plates to maintain consistent performance throughout a run.

Dirt and clay tracks are usually lower traction with more wheel spin compared to carpet racing, and do not generate the same heat in the slipper clutch. The solid slipper plates with larger engagement area for smoother slippage help to generate more traction.

The slipper pads are made from ultra-efficient SLS material with very-high slip efficiency, allowing very precise slip adjustment.

All slipper plates are machined from premium Swiss 7075 T6 and additionally hardened before a final black surface treatment. The plates have a machined relief which decreases the friction surface to assist with clutch slip adjustment. With this plate design, pressure is focused on the circumference of the clutch pads for increased efficiency.

Redesigned and unified motor mount for 3G Gearbox takes advantage of the additional chassis clearance and lowers the motor position for lower CG.

The super lightweight motor mounts are machined from Swiss 7075 T6.

The molded composite gear protector prevents contact between the spur gear and the body. Moulded from strong, lightweight material, the cover helps to protect the body shell and spur gear, and it allows the body to be mounted lower without interference.

The rear-rear RR (D) suspension holder geometry creates 3.0 degrees of inboard rear toe for stability in all track conditions, and increased suspension support both in and out of the corner.

The aluminum suspension holders feature Integrated Suspension Settings (I.S.S.™) for quick & easy suspension geometry set-up.

Machined from premium Swiss 7075 T6 aluminum and black coated.

The suspension holders are universal for both Dirt and Carpet editions.

New aluminum Rear Roll Center Holder is included in each kit. Its centering milled area for the anti-roll bar collar eliminates play and improves the precision of the anti-roll bar movement. The new holder also adds an extra middle pivot ball mounting position for additional roll center tuning. The aluminum holder increases strength & reliability over the previous composite part.

The new arm has more clearance for the C-hub that expands the range of wheelbase adjustments.

The shock mounting location uses an eccentric pivot ball to move the lower shock mount forward or backward, creating different shock angles that affect traction and corner speed.

The arm also features a mounting location for the front anti-roll bar.

These new arms are available in three different hardness alternatives: Medium, Hard and Graphite; each suitable for particular track conditions.

Updated rear suspension arms add a new inside shock mounting position for additional geometry choices, improving the XB2's ability to adapt to any track conditions.

The XB2C includes arms of the stiffest Graphite composite material to make the car more precise and consistent in higher traction conditions.

The XB2D includes arms of Hard composite material that is more flexible than Graphite, generating more rear-end grip in lower traction conditions.

The rear suspension arms are available in three hardness alternatives: Medium, Hard and Graphite; each suitable for particular track conditions.

XRAY’s unique lower shock mounting adapters offer two mounting alternatives to create different stability characteristics while lowering the overall shock placement and CG. The inner shock mounting position increases reactivity of the car, while the outer position increases stability. The Shock Mounting Adapters are suggested for higher traction conditions and as such are included in XB2C only.

The included steering blocks are moulded from XRAY’s stiffest Graphite composite mixture that increases steering response.  The carbon 2-dots steering block extensions provide balanced steering & feel in all conditions.

Both Carpet and Dirt editions include the 2-dots steering block extensions that are well suited for all track conditions. These extensions create a more linear steering that improves control in all conditions.

There are four different steering blocks available – medium (option), hard (option), graphite (included) and aluminum (option) – which can be used to fine tune steering response for various track conditions.

Caster blocks are moulded from XRAY’s stiffest Graphite composite mixture which helps to increase steering response. Different caster block hardness choices are available to fine tune the set-up for all different track conditions.
The caster blocks are very lightweight, yet their construction makes them very stiff & rigid. The caster can be adjusted with values 0°, 2.5° or 5° by using included caster bushings.

There are four different caster blocks available – medium (option), hard (option), graphite (included) and aluminum (option), each one suitable for different track conditions.

Rear Uprights are moulded from XRAY’s stiffest Graphite composite mixture to enhance performance in typical medium to high traction conditions found at most tracks. The rear lowered roll center position ensures stability and reduces collapse of the suspension in high-speed corners.

Rear uprights feature aluminum roll center mounts with multiple upper roll center positions.

The upper roll center is adjusted at the camber linkage via shims (up/down & in/out), while the lower roll center is adjustable via eccentric inserts for 9 different positions (up/down & in/out).

The multi-function uprights have the upper roll center position in the middle of the axis of the driveshaft joint to help generate more traction and increase stability.

There are four different uprights available: medium (optional) hard (optional), graphite (included), and aluminum (optional), each suitable for particular track conditions.

All-new 3.5mm Heavy Duty Turnbuckles together with the new 5.8mm Heavy Duty Ball Joints and Ball Ends ensure super strong and more reliable steering & camber links. The new composite ball joint design reduces bind for smooth suspension and steering movement.

The ball joints increased to 5.4mm instead of the previous 4.9mm. There are two different ball joint shapes: one straight and one curved for improved clearance around the front spring and wheel. The ball joints are slightly longer so the turnbuckle thread deeper in the ball joint to improve reliability and prevent deformation of the plastic at the weakest point at the end of the turnbuckle thread.

The steel turnbuckles increased from 3.0mm to 3.5mm to increase durability.

The new 5.4mm ball ends’ height was increased by 1.0mm to improve the range of motion of the joint. The complete 5.4mm assembly is smoother and more reliable.

Front and rear carbon shock towers are updated with lower geometry. Lowering the shocks increases stability, cornering speed and makes the handling feel more precise. Thanks to the chassis design, the car’s traction has improved, and the lower shocks help to further improve the handling of the car.

Both front & rear shock towers compliment the big bore shocks.

The extra strong front shock tower is mounted forward for the needed clearance to install the shocks behind the tower for maximum protection in a crash.

A composite cover is included for the front tower to provide protection in crashes and increase lifespan.

The included front wing is mounted to the front shock tower.

Front & rear shock towers are machined from premium-grade carbon material that is lightweight & strong, with multiple shock and roll center adjustment positions.

The shock towers are universal for both Dirt and Carpet edition.

The big bore 13.2mm shock absorber length was shortened to provide proper suspension travel with the new shock tower geometry. The shock body and shock shaft were shortened to produce the necessary compression and extension range of motion.

The big-bore 13.2mm shocks improve handling, landing, and bump absorption. The X-rings provide smooth operation & dust resistance. Two different piston thicknesses are included in the kit for tuning along with piston blanks for additional tuning possibilities.

The XB2 shock absorbers feature eccentric lower mounting pivot ball that changes the angle of the shocks when mounted in the arm.

Shock extension is limited to using composite shims under the pistons. Maximum compression is limited to using composite shims under the shock collar.

The shock absorbers are universal for both Dirt and Carpet edition.

The all-new spring collars and lower ball joints are available in various sizes to allow easy adjustment of ride height and droop.

The spring collars are available in 3 different heights: 0mm, -2mm and -4mm. This allows for a wider range of ride height adjustments without changing spring lengths to achieve a desired ride height. Using a lower collar will lower the minimum ride height for a given spring.

The ball joints are available in 3 different lengths: 0mm, +2mm and +4mm. This allows for a convenient droop setting. Using a longer ball joint will increase the overall shock length and will increase the suspension droop at full extension.

Front & rear anti-roll bars were redesigned to match the new chassis layout and improve performance. The front bars’ center sections are narrower to match the one-piece chassis design. The anti-roll bars are used especially for high traction conditions and are included in Carpet edition.

The rear anti-roll bar features easy height adjustment from the top of the ball joint to balance left and right fitment and to ensure the wire will not contact the drive shaft.

Anti-roll bar wires of different thicknesses are available for fine-tuning with the wire thickness laser-engraved on each bar for easy identification.

To increase strength, rigidity and to provide more predictable, precise & more consistent steering, the servo mounts are now made from aluminum and feature a carbon connecting top plate that also serves as a transponder holder. 

Electronics plate is now included for convenient ESC and receiver installation. This makes for easy mounting as well as quick removal of the electronics during maintenance. The plate position can be shifted to the front or rear to move the electronics for a simple weight bias adjustment.

The XB2C includes the Stainless-Steel Plate that is ideal for higher traction conditions, where more front weight bias is needed to slow front to rear weight transfer upon acceleration.

The XB2D includes the Carbon Fiber Plate that is deal for lower traction dirt conditions. The carbon plate reduces weight over the front axles and shifts the weight bias more to the rear.

Multiple cooling fan mounting locations allow fine tuning weight bias, adapting to electronics placement on the chassis, or installing multiple fans for additional cooling.

Optional cooling fans can be mounted using the composite holder in front of the motor or using the left side guard's integrated mounting points.

The composite holder attaches to the chassis using one screw and one locating pin to minimize vibrations and increase fan lifespan.

The front and rear wings are included in both XB2 versions.

The front Wide Ribbed wing works perfectly with the new body to increase front down force, while the rear wing generates maximum traction and provides jump stability.

Made from strong Lexan™ material, the rear wing is supported on the wing mounts by extended flat shims to better support and extend the life of the wing.

Both front & rear wings feature pre-marked mounting holes for easy installation.

The new lightweight version of the Epsilon 2C body for high traction conditions was updated to fit the wider chassis, longer side guards, and provide clearance for the 3G and new optional 5G gearboxes.

The shape of the Epsilon 2C body enhances stability and corner speed for maximum pace.

For high competition racing, the XB2C now includes the lightweight version of the body to lower CG of the car, resulting in more dynamic & improved handling. Available also in a thicker standard weight version.

The new lightweight version of the Epsilon 2D body for low traction conditions was also updated to fit the wider chassis, longer side guards, and clear both the 3G and new optional 5G gearboxes.

The shape of the Epsilon 2D body increases rear traction and calms overall handling to help improve consistency.

For high competition racing, the XB2D now includes the lightweight version of the body to lower CG of the car, resulting in more dynamic & improved handling. Available also in a thicker standard weight version.

The front end of the XB2 was specifically designed to be unified for both Carpet & Dirt versions.

The side braces allow mounting the battery holders in an extra forward position to move the battery weight as far forward as possible. This additional weight balance alternative expands the weight balance adjustment range to help achieve the best performance on any track condition.

Tweak-free fully adjustable battery holder is integrated into the side guards allowing easy and fast battery position adjustments, as well as simple battery installation through the smart quick-release system.

The battery pack can be easily moved front/rear to adjust the balance of the car. When the rear motor brace is removed, the battery pack can be moved completely rearward to maximize the rear weight bias and generate extra traction through the rear suspension.

The height of the battery backstop is adjustable for different battery sizes.

The battery holder is mounted to the chassis through one connecting screw on each side brace to eliminate any effect on chassis flex. 

The battery holder is universal for both Dirt and Carpet editions.

Extra forward battery position to move weight as far forward as possible.

The bridge style upper deck helps to optimize flex from side to side and front to rear while also providing clearance for the steering system. The upper deck also accommodates the anti-roll bar collar for improved functionality and allows mounting the shock absorbers behind the shock tower for better protection in a crash.

Steering arms, Ackermann plate and the servo arm were reconfigured for more precise steering feel. Thanks to the upper deck design, the steering system also has more space to achieve the improved steering performance. To integrate with the one-piece chassis, the steering post was updated as well.

The front roll center holder features the two most widely used roll center positions that are suitable for all track conditions. The roll center block connects to the one-piece chassis and bridge upper deck to form a strong front structure.

The design of the roll center holder mounts the front anti-roll bar directly on the holder.

The front roll center holder is universal for both Carpet and Dirt Editions.

The updated arm mount is an important part of the suspension, connecting the lower arms to the chassis plate. The included composite mount has a 0° kick-up angle, resulting in overall kick-up matching the integrated chassis kick-up of 22°.

Optional aluminum and brass arm mounts are available for weight balance or kick-up adjustment. The aluminum arm mount also includes a provision for a 10g Tungsten Weight for additional weight balance choices.

The full range of conical springs are compatible with Big Bore but also Shorter Big Bore shocks.

The XB2C includes 3 dots front and rear springs; the XB2D includes 1 dot springs for both front and rear.

The XB2 springs, like all other XRAY springs, are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.

The piston choices were chosen for ideal fit and dampening in the bore shock bodies. The 2-hole pistons (1.6 and 1.8mm) are included in 2.0mm or 2.5mm thickness alternatives. In addition, two sets of blank pistons in both thickness alternatives are included for individual custom modification.  All pistons are made from Delrin and are molded using ultra-high precision moulds.

The Gear diff in the Carpet edition was redesigned to allow for unified drive shafts length for the Ball Diff and Gear Diff alternatives. The diff case, diff cover and diff outdrives were updated.

The gear diff comes now with steel satellite gears for improved efficiency and increased lifespan.

The gear differential is suggested for medium to high traction conditions as it increases on-power steering and is beneficial on all carpet tracks.

To simplify the spare parts compatibility, the required drive shafts length is unified between the Gear Diff and Ball Diff. Thanks to the new gear diff design, the 77mm long drive shafts now fit both differentials.

Manufactured from world-renowned HUDY Spring Steel™ the drive shafts feature 2.5mm drive pins for maximum drivetrain efficiency. The drive shafts are some of the thinnest yet most durable drive shafts used in electric off-road cars. Treated with a proprietary hardening process, the drive shafts provide unbeatable lifespan and reliability.

To unify the wheel hubs in the Carpet & Dirt Edition, both include the same wheel hubs with 0mm offset in front and +2.25mm offset in rear.

Ultra-lightweight 12mm wheel hex drive hubs are CNC-machined from Swiss 7075 T6 black-coated aluminum. These ultra-true hex hubs have a clamping design which ensures ultra- solid mounting of the wheel on the hub.

The rear alu hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting.

To adjust track-width, optional offset wheel hex drive hubs are available.

Slim front wheels with standardized narrow offset are designed for carpet racing and are included in the Carpet Edition. The wheels feature a countersunk center area to allow the wheel nut to sit deeper in the wheel.

The wheels are perfect for high-competition racing. They feature internal reinforcement ribs to provide stability and resist deformation, yet they are made from a flexible material to provide durability and withstand impacts.

The side of the wheel is aerodynamic for maximum performance. The wheels were designed to provide maximum traction.

The wheels feature a 12mm internal hex.

XRAY Instruction Manuals have become the industry standard, being simply the best manuals included with an RC model car. Whether you are a first-time builder or an experienced racer, all 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.

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.