QA1 8Q53 Twin Tube Small Body Aluminum Circle Track Coilover Shock 5in Stroke 3C/3R

The QA1 8Q53 is a rebuildable, twin tube aluminum small-body shock absorber designed for circle track racing. Part of the 8Q Series — formerly known as the 82 Series — this shock delivers the performance, consistency, and tunability that serious racers demand, all in a compact, lightweight package ideal for dwarf cars, Legends cars, Mini/Micro Sprints, midgets, and any low-clearance application.

Key Features:

• Twin tube, small-body design with a 1-5/8" body diameter and black zinc aluminum construction delivers full-size shock performance in a compact form factor
• 5-inch stroke with a 10.63" collapsed length and 15.75" extended length; eye/bearing upper and lower mounts (EYE-B/EYE-B)
• 3C/3R valving (3 compression / 3 rebound) for a balanced, tunable baseline setup right out of the box
• Threaded body for easy coilover conversion using compatible QA1 CK8Q00 (1-7/8" ID) spring kits, sold separately
• Raw aluminum pistons deliver maximum consistency across the full stroke range
• Scalloped base loop increases clearance in tight spaces such as upper control arms and shock mounts
• Gland with relief cuts and hyper screw port makes filling and bleeding during assembly fast and simple
• Upgraded seals minimize leaks, particularly in demanding high-rebound applications
• Slip-fit compression tube simplifies the rebuilding process
• Laser-engraved, black-anodized closure nut keeps serial numbers and valving data legible at the track or in the shop
• Racer-rebuildable and re-valveable in minutes using basic tools and available QA1 rebuild kits (sold separately)
• Tunable via bleed shims or drilled bleeds for customized compression and rebound characteristics
• Sold individually

The 8Q53 is coilover-compatible and available in a range of body lengths (3–9 inches) to suit different rules packages and chassis setups. Its smaller outside diameter makes it an excellent choice for lightweight classes or builds where packaging space is at a premium. Manufactured by QA1 in Lakeville, MN, this shock reflects decades of American-made racing suspension expertise.