QA1 5Q74-10R 5Q Series Rebound Adjustable Twin Tube Circle Track Shock 7in Stroke 4C/10R

The QA1 5Q74-10R is a large steel body, twin tube, rebound adjustable circle track shock absorber designed for serious circle track racers competing on both dirt and asphalt. Part of QA1's proven 5Q Series, this shock features a 7-inch stroke bearing mount body with 4-click compression and 10-click rebound valving, giving racers precise on-track tunability without leaving the pits.

Built around a zero gas pressure design, the 5Q74-10R delivers maximum grip on slick surfaces and excels on average to dry-slick dirt and asphalt tracks where traction is limited. The rebound adjustable piston rod allows racers to dial in valving right at the track without any disassembly.

Key Features:

• Twin tube steel body — large-body construction with a 13.38-inch mount length
• Rebound adjustable piston rod — easily dial in valving at the track
• Zero gas pressure design — maximizes grip and feel on slick track conditions
• Raw aluminum pistons — minimizes valving variations compared to anodized parts
• Laser-engraved, black-anodized closure nut — serial numbers and valving are easy to read at the track or in the shop
• Two-piece body design — simplifies disassembly, rebuild, and re-valving
• Hyper screw port gland with relief cuts — makes filling and bleeding easy during assembly
• Upgraded seal kit — minimizes leaks, especially in high-rebound applications
• Slip-fit compression tube — simplifies the rebuild process
• Scalloped base loop — increases clearance in tight areas like upper control arms and shock mounts
• Coil-over compatible — can be used in coil-over configurations with appropriate QA1 kits (sold separately)
• Bleed shims or drilled bleeds for maximum valving tunability

The 5Q74-10R can be rebuilt and re-valved at the track in minutes using basic tools and available QA1 tuning and rebuild kits. Made in the USA by QA1 in Lakeville, MN, this shock is a trusted choice for circle track racers demanding consistent, rebuildable performance event after event.