The twin tube shocks from QA1 are rebuildable and offer the performance, consistency, and tunability that racers demand.
The 5Q series, formerly known as 51 and 53 series shocks, is a large body steel shock available in both stock mount and bearing mount configurations.
Choose from 7" and 9" bearing mount bodies or various lengths for stock mounting based on rules and applications.
Shocks are available with rebound adjustable piston rods to adjust valving at the track.
Small details add up to create great overall performance.
The black zinc coating ensures a consistent finish, creating a tight seal every time.
The scalloped base loop increases clearances in tight areas such as upper control arms and shock mounts.
Pistons are made from high-quality raw aluminum, minimizing variations found in anodized parts.
You can valve the shock with bleed shims or drill out bleeds to maximize tunability.
The twin tube shock has a big body diameter of 2-1/16" with eyelet bearing-mounts.
Racers can re-valve and rebuild 5Q shocks in minutes using basic tools.
Two-piece bodies make disassembly and reassembly simple.
The gland features relief cuts and a hyper screw port, making it easy to fill and bleed shocks on assembly.
An upgraded seal kit minimizes leaks, especially in high-rebound applications.
The compression tube uses a slip fit design to simplify the rebuild process.
5Q shocks utilize a laser-engraved, black-anodized closure nut for easy reading of serial numbers and valving at the track or in the shop.
QA1's steel body shocks can be used in coil-over configurations with the appropriate kits sold separately.
Racers can rebuild and re-valve their shocks using available adjustment and rebuild kits.
