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Xray XT9 Nitro Truggy

Xray XT9 Nitro TruggyMeet the new Team Xray XT9 Nitro Truggy! The XT9 is the next evolution of the Xray off-road concept, featuring innovative Xray Multi-Flex adjustment, superior weight balance and weight distribution, easily adjust chassis flex settings for traction and stability adjustment as well as more forgiving and easy-to-control handling. Long-term tested by factory racing team and regular drivers in all conditions, the innovative design focuses all the way down to the smallest details to increase performance, handling, and reliability.

Building on the heritage of quality, performance and support evidenced by multiple Car of the Year awards, Viewer’s Choice award, and countless wins and victories at racetracks around the world including the prestigious European Championship title, Xray is proud to present the new XT9. Developed, designed and manufactured all in Europe.

Chassis
The XT9 chassis was completely redesigned to allow for updated weight distribution to improve chassis balance and stability and to accommodate new center diff position. The chassis is CNC-machined from high-quality Swiss 3mm 7075 T6 aluminum, which is strategically machined in low-stress areas and is then anodized to make it as light as possible without affecting strength or rigidity. Non-essential material below the engine, fuel tank, and diffs was removed to allow for the lowest possible center of gravity and appropriate chassis flex. All screw holes on the bottom of the chassis are countersunk, allowing for a very smooth chassis underside with no protruding screw heads.

Side Guards
The side guards have an updated design to compliment the new redesigned chassis. The tough composite side guards offer improved side protection, and fit perfectly to chassis to seal against dirt, and protect the fuel tank. The side guards are specifically engineered as a part of the Multi-Flex adjustment system.

Chassis Weight Balance
As part of the new XT9 chassis design, the engine and driveline components were slightly repositioned. The center differential mount was shifted slightly to allow the engine to be parallel to the chassis centerline and align the central drive shafts as straight as possible. The layout of the electronics was designed to focus specifically on weight distribution and balance.

Radio Plate
The 1-piece electronics assembly is very compact and can be quickly & easily removed for servicing and cleaning. You need only to release a few screws from the bottom of the chassis to remove the entire electronics assembly from the chassis. The large molded radio box features a very clean design and layout that places the weight in key areas for proper balancing. The batteries are placed along the centerline of the chassis, and the lightweight receiver is placed on its side. The very easy-to-access radio box is mounted on the side of the radio plate and is released by only a few screws. For racers not using a radio switch, a handy molded cover is included to help guarantee a leak-free radio box. The tight antenna tube holder ensures that the antenna tube stays attached even if the car flips.

Drive Shafts
XT9 constant velocity drives (CVDs) are manufactured from world-renowned HUDY Spring Steel. The drive shafts are some of the world‘s thinnest yet most durable drive shafts used in off-road kits. The central larger and stronger outdrives feature protective rubber boots, thick 3mm pins, and a protective locking ring. All drive shafts and outdrives are hardened with a proprietary hardening process to provide unbeatable lifetime and reliability.

Diff Outdrives
To ensure highest life time and reliability all the diff outdrives are machined from HUDY Spring Steel. The inner portion of the outdrives are additionally hand-ground for maximum precision and fitment into the diff case. The outdrives are hardened using own special hardening process to provide extended life time and reliability.

Gear Differential
Rubber-sealed composite differential housings feature steel inserts that are manually precision ground after the molding process to guarantee a perfect fit with no vibration. Differential internal gears are made from pressed steel, heat treated, and machined for ultra-precision and smooth operation.

Diff Gears & Drivetrain Ratio
Differential main gears are manufactured from HUDY Gear Steel on a precision manual gear machine. This material was specially formulated and developed for use in gears. All gears are hardened to provide the longest possible lifespan.

Clutch
The clutch provides a smooth and continuous transfer of power from engine at very high RPM. The clutch system includes alu 1.7g lightweight clutch shoes, 1.0mm springs, aluminum flywheel and a steel flywheel nut.

Fuel Tank
The Xray XT9 extra large 150cc fuel tank is molded from special composite mixture which ensures very high reliability and rigidity. The molded-in splashguard protects the brakes from fuel spillage. The tank is mounted with rubber grommets to absorb vibration and small composite holders secure thick 5.5mm silicone fuel tubing. Included fuel filter is conveniently mounted to the side of the fuel tank.

Diff Bulkheads
The diff bulkheads are an important chassis component, housing both the front and rear differentials and providing mounting points for the suspension mounts and shock towers. The XT9 bulkheads are strong enough to withstand the rigors of racing and extreme impacts. The bulkheads have been designed for extreme durability, while still providing easy access for tuning and maintenance.

Suspension Arms
All suspension parts on the XT9 were purposefully designed and developed for truggy racing. The super-long arms provide maximum stability while the optimum stiffness of all suspension parts ensures maximum traction under all different racing conditions. The super-long suspension arms ensure the best handling over rough terrain and excellent landing over big jumps. Length, thickness, flexibility, geometry of suspension points and materials used… these are all the concepts and details that had to be thoroughly reviewed to create the optimum suspension arms. The exclusive composite mixture used for suspension arms is a perfect balance between reliability and performance. The suspension arm itself is rigid enough to provide a responsive feel, yet soft enough to survive extra-long main events.

Caster Blocks
The unique C-hub suspension on the XT9 features Integrated Adjustable CasterTM which enables adjustment of the single C-block through the entire caster angle range; no optional caster blocks needed! The C-block features an inclined kingpin design for increased steering and stability. Total caster is the angle that the C-hub is to the flat chassis bottom. Caster is affected not only by front kick up but also by the C-hub caster and caster eccentric bushing. The combination of all three represents the total caster angle. The XT9 includes a 15°caster block with the centric bushing. 1 and 2mm eccentric bushings can be purchased as options.

Steering Blocks
The super-lightweight composite zero kingpin steering blocks feature an inset aluminum bushing that is molded into the steering block itself, ensuring a lightweight, precise and durable steering block assembly. This enables the kingpin screws to be firmly held in the aluminum threaded bushing while the end of the screw is self-locked in composite to prevent the screws from loosening during racing. The molded-in aluminum bushings allow the steering blocks to turn freely ensuring precise steering reaction. The super-tiny steering blocks are molded from a lightweight yet very strong and durable composite material.

Rear Uprights
The uprights were designed to have a smaller design with less weight. The lower roll center position features 2 positions while the upper roll center positions features 3 different roll center positions. The outer suspension pin on which the rear upright sits features 2 shims which allow for additional wheelbase adjustment.

Aluminum Hex Hubs
Ultra-lightweight 17mm wheel hex drive hubs +2.00mm are CNC-machined from Swiss 7075 T6 black-coated aluminum. The alu hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting. To adjust the track width optional offsets are available -0.75mm, 0mm, +1.00mm, and +5.00mm.

Shocks
The XT9 shocks have all the parts fully redesigned and adjusted to the big-bore design including hardcoated shock bodies, reinforced ball-joints, and shock balls with increased movement. Lower shock nut gives superior shock shaft centering. Ultra-precise shock pistons feature 6-, 8- and 10-hole shock pistons. The longer shock shafts and shock collar combine to give increased downtravel. Ultra-fine shock protective rubbers give superior sealing against dirt. The oversized big-bore shocks feature 18.5mm outside diameter shock bodies, externally threaded with an adjustable collar for quick and easy adjustment. The shock bodies are hardcoated, and features a 1-piece alu shock cap. The large 16.0 mmm inner diameter of the shock bodies ensures proper and consistent shock oil flow through the perfectly-round pistons which move very precisely inside the smoothly-finished interior of the shock body. The result is more consistent damping characteristics of the shocks.

The new big-bore pistons are manufactured from well-proven specially-formulated composite material to provide smoother action and durability. The well-proven molding production process is used to ensure perfect roundness of the pistons after production, so that the pistons will move perfectly inside the shock bodies for identical shock action in all four shocks. The shock membranes are wider to fit the big-bore shocks. The material has been also improved to guarantee the same damping characteristics from the beginning of the race to the end even after extreme operation.

The lower shock assembly ensures that the shock rod will move very freely inside the shock body but at the same time will minimize oil leakage and keeping the dirt away. Two shock O-rings – manufactured from a superior silicone compound to allow ultra-free movement of the shock rod while still maintaining a tight seal – are installed in the lower part of the shock body and are secured with composite shims. The entire lower shock assembly is secured with the lower aluminum shock cap which makes assembly/disassembly quick and easy.

The shock shafts are thick and robust to ensure they will handle any abusive racing conditions and big jumps. The 3.5mm thick shock shafts are precisely machined from special high-tensile steel and afterwards are ground for a super-smooth surface to ensure very free and smooth movement of the shock shafts in the shock bodies.

Shock Towers
Machined from extra thick premium-grade graphite, the Xray XT9’s front and rear shock towers are lightweight and strong. Front and rear shock towers include multiple shock positions as well multiple roll center adjustment positions. The rear shock tower also holds the wing mount.

Chassis Braces
The front and rear braces have significant influence on chassis stiffness and chassis flex and as such have great impact on handling under different grip conditions. The XT9 features the well-proven stiff composite braces for front and rear. These braces are more than up to the task… strong enough to hold the chassis together after heavy jumps or crashes to avoid tweak or breaking, yet still flexible enough to generate the needed grip. In the rear two braces are used to reinforce the back section of the XT9 truggy against the extreme forces of big jumps.

Dual Arm Steering System
The dual arm steering system is very simple yet effective and features an integrated easily adjustable servo saver. Ackermann is easily adjusted by quickly and easily changing steering link mounting positions on the steering plate. Bump steer is easily adjusted by inserting shims between the graphite steering plate and steering linkage

Center Differential Access
Access to the center differential is super easy by releasing the upper deck with only four screws. The lower center diff housing is sized to accommodate optional spur gears and the stands are lowered to keep the weight as low as possible and to allow smaller central diff gears to be used. The center diff housing stands hold the effective and race-proven brake system.

Brake System
The Xray XT9 features the well-proven high-performance braking system that is so strong, precise and dependable that is makes slowing and stopping effortless. Coupled with the chassis’ balanced load distribution, the extraordinary control imparted by the braking system give you complete confidence as you pitch the kit into the corner.

Xray focused on all of the smallest details when designing the XT9’s brake system. The laser-cut, precision flat-ground steel brake disk allows fade-free braking in conjunction with the special high-grip brake pads installed on the laser-cut brake plates. The brake disk is small, slim, and very light. The precision hand-grinding allows true, wobble-free rotation. Brake inputs are transferred precisely to the brakes thanks to the rigid high-precision machined brake cams. Both brake disk and brake pads are specially heat-treated for maximum lifespan.

Engine Mounts
High-grade CNC machined aluminum engine mounts are machined from lightweight alloy and help to dissipate engine heat. The engine mounts are easily adjustable from the bottom of the chassis to obtain proper gear mesh. The engine mount has been specifically designed to extend up to the front engine bearing to provide higher reinforcement of the chassis in the longitudinal direction and in jumps will minimize the bending of the chassis between the clutchbell and spur gear.

Anti-Roll Bars
Anti-roll bars are manufactured from spring steel material and are included to stabilize the chassis at both front and rear. The roll bars are easily mounted to the diff cases and can be adjusted through the adjustable linkages. Additional anti-roll bars in different thickness are optionally available for fine-tuning your setup.

Xray XT9 Specs

  • Length w/o body: 574mm
  • Chassis length: 452mm
  • Wheelbase: 376-388mm
  • Width: 428mm front; 430mm rear
  • Weight: 2333g
  • Ready-to-run weight: 3681g
  • Price: $580

Xray XT9 Pictures

 
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3 Comments  comments 

3 Responses

  1. Jeff

    Xray sure does know how to make their cars look sexy, not that they need any help

  2. Hendricks

    I love the easy diff access, all rc cars should be like that.

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