This Schumacher Racing Products factory replacement carbon fiber rear shock mount is made for the Cat XLs platform. The woven carbon fiber construction provides a rigid, lightweight mounting point for the rear shock absorbers. Multiple mounting holes allow for shock position adjustments to dial in handling. This is a direct replacement for the original part on compatible Cat XLs builds. Features: Carbon fiber construction Multiple shock position mounting holes Rear shock tower for Cat XLs platform Lightweight and rigid design 7/7/26 cs