Adjustable Poly Bump Kit

The ALLSTAR PERFORMANCE Adjustable Poly Bump Kit (ALL 64505) is a versatile bump stop assembly designed for both race vehicles and off-road applications, providing essential shock absorption to control suspension bottoming without adding excessive stiffness. This kit is ideal for teams and enthusiasts looking to optimize their suspension setups for various track conditions and terrains.

Constructed from durable polyurethane, the bump stop features adjustable packers that allow users to fine-tune compression characteristics. The kit includes 1/16-inch thick packer shims, enabling quick adjustments to bump stop compression rates without the need to replace the entire component, making it critical for teams making mid-session setup changes.

This bump stop kit is essential for short-track racers, drag racing teams, and off-road competitors who require reliable suspension geometry control. The shock mount interface ensures compatibility with standard suspension architectures across multiple vehicle platforms, while the polyurethane material absorbs impact energy more progressively than traditional rubber.