The SCX is distinctively XRAY – a premium, professional, high-competition R/C short course truck for the most demanding of racers; developed with attention to the smallest details and backed by leading service & support…a luxury masterpiece.
CNC-machined from high-quality 2.5mm Swiss 7075 T6 aluminum, the lightweight chassis retains the necessary strength and rigidity for the longer wheelbase SCX and is black coated at XRAY’s own in-house fully robotic coating line.
After extensive testing of different chassis designs, the final concept was selected for its flex characteristics and layout to produce the best balance of traction and stability.
The chassis features bent sides for improved stiffness, and increased traction with maximum stability for the truck.
The SCX rear bumper assembly protects the truck from impacts with other vehicles during the close quarters racing common in Short Course events, and also contributes to the scale appearance that makes the class popular.
The tweak-free fully adjustable battery holder is integrated into the side guards allowing quick and easy battery position adjustments, as well as simple battery installation through the smart quick-release system.
The battery pack can be 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 for the rear suspension.
The height of the battery backstop is also adjustable for different battery dimensions.
The battery holders are mounted to the chassis through one connecting screw on each side brace to eliminate any negative effects on chassis flex.
The LCG gear box also features a differential height adjustment. There are 6 height adjustment positions available using the included eccentric bushings. The ideal position will vary depending on the track conditions, ride height and the size of the tires used.
The LCG differential has greater internal oil volume to increase consistency of the diff action, yet at the same time it is narrow to fit into the LCG gear box and to move the rotating weight closer to the centerline.
The super-smooth gear diff includes a composite case and cover with internal satellite gears that are precision-molded from special XRAY-developed graphite composite material, ensuring a long lifespan and super-smooth, efficient operation.
Power from the motor is transferred to the drivetrain via an externally adjustable slipper clutch for quick & easy tuning. The 3-pad slipper clutch ensures super-smooth clutch operation and efficient and consistent braking. It is extremely easy to make ultra-fine adjustments to the clutch externally.
The slipper clutch pads are made from ultra-efficient SLS material with very high slip efficiency, allowing for very precise slip adjustment.
The lightweight 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.
The shocks are membrane-free, yet they still allow for easy, consistent building and rebound setting using the bleed-screw shock cap design.
Downstop is adjusted using composite shims under the pistons. Upstop travel is adjusted using composite shims under the shock collar.
The aluminum body, lower nut, and bleeder shock caps are all machined from premium Swiss 7075 T6.
Shock shafts are machined from special steel material, precision hand-ground for maximum smooth operation, and additionally hardened for improved lifespan.
Outer suspension pins holding the front caster block and rear uprights feature wheelbase shims for quick & easy wheelbase and weight balance adjustment. Using the included shims, both front and rear blocks can be moved forward or rearward to adjust weight balance depending on track condition.
By moving the arms to the front, the balance & weight of the car are transferred more to the rear; recommended for medium- and high-traction conditions. By moving the arms to the rear, the balance & weight of the car shift forward.
Items required for assembly:
Radio system (transmitter and receiver)
Steering servo
Motor
Pinion gear
LiPo battery packs
Speed controller
Charger
Tires, wheels and inserts
Short course truck body
Double-sided tape
CA glue
Bearing oil
Medium-grade (blue) threadlock
Universal tool for all nuts and turnbuckles and other tools
