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 trademark attention to detail by our production specialists. The X1 is truly a masterpiece.

With XRAY’s no-compromise, high-competition focus, the X12 is offered in two versions again this year, with each one equipped for the demands of different track conditions out of the box.

Whether on the low to medium-grip tracks that are typical in Europe, or on the super-high grip tracks common in the US, there is an X12 to fit each occasion. Both choices are built on the same core platform with interchangeable parts.

The chassis is shortened by 3.5mm in the front with an extra chamfer to reduce chassis drag and improve cornering speed.

Both EU and US Edition kits include an aluminum chassis as stock equipment. The EU version includes the flex alu chassis with more cut-outs better suited for low to medium grip conditions. The US version includes solid alu version, which has less cut-outs, for minimal flex making the car more stable and predictable in higher traction situations.

An optional 2.5mm graphite chassis is available as an additional tuning choice and is a good option for low grip carpet racing, as well as asphalt.

The aluminum chassis and rear POD have a well proven design and shape.

The chassis was designed to accommodate the front Tweak-Free Suspension and the rear Tweak-Free POD System. The side link mounting system is mounted directly to the chassis, and the chassis features slots for adjustment of the servo mount position.

The chassis and rear POD edges are beveled, for less resistance to the ground during cornering.

Read more >

The re-designed rear graphite plate height is reduced by 6.5mm to lower the CG and to eliminate tweak issues from a crash. The side tubes are top mounted for easier assembly and maintenance.

The rear brace is mounted 4mm lower to help reduce the CG, and features holes for bushings to mount side braces for a cleaner look.

The new rear brace includes mounting holes for the battery backstop.

The side brace mounts have been lowered by 1.5mm to mount the rear graphite brace with side braces as low as possible, improving stability and consistency on the track.

The re-designed rear graphite plate height is reduced by 6.5mm to lower the CG and to eliminate tweak issues from a crash. The side tubes are top mounted for easier assembly and maintenance.

The rear brace is mounted 4mm lower to help reduce the CG, and features holes for bushings to mount side braces for a cleaner look.

The new rear brace includes mounting holes for the battery backstop.

The side brace mounts have been lowered by 1.5mm to mount the rear graphite brace with side braces as low as possible, improving stability and consistency on the track.

The new bulkheads were reconfigured to achieve a lower CG and reduce weight to improve stability while also eliminating tweaking issues in serious crashes. The bulkheads are 5mm lower and 4g lighter comparing to previous versions. The bulkheads use two centering holes instead of one to eliminate tweak issues in crashes. The rear bulkheads feature smaller and lighter eccentric bushings with finer steps for improved ride height adjustability and a lower center of gravity. The smaller ride height eccentrics allow for more compact bulkhead dimensions to reduce weight and lower CG. The graphite rear brace is thinner and lighter for improved CG and flex of the POD. The rear brace mounts to the bulkheads from the top instead of the rear for improved tweak resistance but only uses a single mounting point instead of two for improved flex of the rear POD.

The bulkheads are a 1-piece tweak-free design which is more rigid and robust. The lower profile of the bulkheads and redesigned upper plate help to reduce the overall CG of the assembly.

The bulkheads feature centering pins on the top and bottom surfaces that align the upper and lower pod plates during assembly and prevent movement between the components during a crash. To further enhance the assembly’s strength and resistance to tweak, the upper pod plate uses 4 mounting screws to secure it to the bulkheads.

The 1 piece bulkheads in the X12 utilize eccentric bushing inserts for the rear axle height adjustment.

The new adjustable battery holder system secures the battery in the car in a tweak-free, non-fixed manner to help improve traction and makes it more stable and easier to drive.

The battery holder allows for a wide range of battery placement adjustment. The New X12 has 4 battery mounting positions.

The size of the battery varies so in case you have too much play upward, use thinner shim for the backstop and in case you have no play, use thicker shim.

The rear upper plate features a new design that allows to install and use the low profile bushing to mount the center shock that eliminates to use the M3 lock nut from bottom.

The POD parts include aluminum bulkheads and graphite upper and lower alu pod plates. The mounting system improves traction and stability of the car and eliminates tweak issues after crashes.

The graphite upper plate has been designed to mount to the bulkheads with centering pins and 4 screws to secure the assembly in proper alignment and to minimize the chances of tweak after an impact on the track.

The rear POD also features one-piece bulkheads to achieve maximum durability. The bulkheads allow for rear axle height adjustment via traditional eccentric bushings.

An additional forward position for the center pivot improves cornering speed and steering response.

The aluminium Tweak-Free Pod Mounting System improves traction and stability of the car and eliminates tweak issues after crashes. The system allows for a significantly lowered roll center, lowered center of gravity, and pivot height adjustment using different shims.

The pod pivot position choices still include the standard rearward mounting position where the center pivot is located in-line with the side link pivot balls on the rear pod plate, and the middle location that places the pivot 2mm forward of the link mounting points.

Forward – Improved rotation from the longer rear pod geometry. Gives the most initial steering as well as rotation, best suited for high grip carpet.

Middle - Balance between front and rear traction and well suited for most conditions. 
Rearward – Most neutral handling, for low to medium grip tracks.

Lighter wheel hubs with M2x5 screws instead of M2.5x8 reduce rotating mass and minimize vibration from the wheel hub.

The aluminum rear hubs are machined from lightweight aircraft aluminum and black-coated for a stylish look. The aluminum wheel hubs feature a center-balanced clamping mount system, ensuring secure mounting while eliminating vibration and run out.

Side braces are updated to accommodate the all-new special low profile, lightweight bushings to replace the traditional lock nuts and reducing the chances of chassis tweak while lowering the CG.

Graphite side braces are mounted to the rear link brace and to the chassis via aluminum posts, offering three flex setting alternatives to alter the chassis stiffness for different track conditions.

The Side Brace Flex Settings was redesigned featuring an extra flex setting that is suggested as an initial set-up.

Soft – no side braces – This option will make the car generate more mechanical grip. Best suited for low to medium grip carpet, as well as asphalt.

Medium – side braces are mounted to the rear graphite brace and to the middle of the chassis – A good compromise between mechanical grip and steering response. A good starting setup for most conditions.

Medium stiff - the side braces are mounted to the rear graphite brace, to the middle of the chassis, and to the middle-front of the chassis – A good compromise between mechanical grip, and steering response. A good adjustment as grip levels approach high traction.

Stiff – the side braces are mounted to the rear graphite brace, to the middle of the chassis and to the middle-front and front points of the chassis. – The stiffest, and most stable option. Best suited for high grip carpet. This setting allows less roll and will reduce overall grip.

4mm kingpins provide the foundation for the Tweak-Free Front Suspension. The kingpin’s strong design with machined camber angle provides precise geometry and handling. In the X12’23, the kingpins feature a new nickel coated surface for smoother damping action.

To match typical track conditions, each version includes the best starting point for kingpin geometry:

EU Kit – 1.5 Camber

US Kit – 1.0 Camber

A complete range of 0.5°, 1.0°, 1.5° and 2.0° camber king-pins are available to adjust the camber in fixed steps.

The Tweak-Free front suspension features a new double front brace system that improves steering response and cornering speed. The design incorporates a flex adjustment system with three different settings for various track conditions.

Soft – the graphite brace is not mounted to the front graphite arm – This option makes the car initially less responsive but will provide more mechanical grip. Best suited for low grip carpet conditions and asphalt.

Medium – the graphite brace is mounted to the front graphite arm by small posts that raise the brace and makes the front suspension stiffer – Gives a good balance between initial response and mechanical grip.

Stiff - the graphite brace is mounted to the front graphite arm by small posts that raise the brace and makes the front suspension stiffer, and another identical brace is mounted underneath the small posts for added rigidity. Improves steering response compared to the two softer options, without giving away front grip. Best option for most conditions.

The front suspension arm includes mounting locations for the included adjustable steering lock limiters, making it possible to physically limit steering angle for improved consistency during cornering. The steering backstops have been updated for 2023 for better reliability and ease of adjustment.

The 2023 bumper provides better clearance when using a setup station.

The alu bulkheads allow for very quick & easy ride height adjustment using eccentric axle holder bushings. The axle height is now adjustable in 0.25mm increments over a 2.5mm range for ride height fine tuning.

Some information shown below may include details from previous kits, and it may vary slightly from current kit specifications.

The Tweak-Free Front Suspension was designed to achieve maximum durability, stability and to remove tweak issues after a crash. The front suspension design features fewer components, reducing the mass of components mounted high above the chassis plate in previous designs, resulting in a super low CG.

A single Tweak-free lower graphite arm that replaces previous composite arms for maximum rigidity are part of the front suspension flex adjustment.

Steering blocks feature optimized Ackermann positions which offer ideal steering characteristics.

The Tweak Free Front Suspension features the heavy-duty 4mm kingpin system that retains its geometry after an impact to help complete a race without any adverse effects on handling.

Big bore front springs with large diameter allows for a smoother and more precise front suspension dampening.

An ultra-light weight steel solid axle is included in the kit for improved drivability and throttle response.

The hollow steel construction is extremely light and more durable than a graphite axle. The steel material minimizes flex, making the car more predictable to drive, especially in the Modified class.

With the new platform in 2021, the X12 was designed with the use of a solid axle in mind to achieve maximum performance. For 2023, both the EU and US Editions include the new solid axle as this has become the standard for most conditions worldwide.

Our race proven ball differential is still available as a tuning option if needed for low grip situations.

The rear differential features high-grade precision carbide balls in the spur gear, hardened and precision-ground D-steel shims, and premium carbide axial thrust-bearing.

An ultra-light weight steel solid axle is included in the kit for improved drivability and throttle response.

The hollow steel construction is extremely light and more durable than a graphite axle. The steel material minimizes flex, making the car more predictable to drive, especially in the Modified class.

With the new platform in 2021, the X12 was designed with the use of a solid axle in mind to achieve maximum performance. For 2023, both the EU and US Editions include the new solid axle as this has become the standard for most conditions worldwide.

Our race proven ball differential is still available as a tuning option if needed for low grip situations.

The rear differential features high-grade precision carbide balls in the spur gear, hardened and precision-ground D-steel shims, and premium carbide axial thrust-bearing.

Lightweight low-profile bushings installed in the graphite plates replace traditional locknuts for a sleeker look while lowering CG, and simplified assembly eliminating the additional wrench needed for M3 nuts.

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.

To get the finest tips & tricks on how to build the X4 or to learn more about each of the set-up options, follow the series of XRAY X4 Tech Tip videos featuring Alexander Hagberg. The videos walk through each section of the building process with suggested assembly techniques, demonstrations, and detailed explanations of the various setup adjustments.

XRAY Instruction Manuals have become the industry standard; they are 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 instructions are straight-forward and easy to understand. The full-color Instruction Manual contains large 3D illustrations that show all assembly details in the easiest and most comprehensive manner.