QA1 Precision Products 5Q685-3 Twin Tube Large Body Circle Track Shock Absorber 6 Inch

The QA1 5Q685-3 is a professional-grade twin tube shock absorber designed for circle track racing and high-performance applications. This large body steel shock features stock mount configuration with a 6-inch body length and 5C/3R compression/rebound valving, delivering the consistency and tunability that serious racers demand.

Key Features:

• Large body twin tube design with 2-1/16 inch diameter steel construction for durability
• Stock mount configuration for direct bolt-on installation
• Fully rebuildable and re-valvable in minutes using basic tools
• Two-piece body design simplifies disassembly and maintenance
• Black zinc coating ensures consistent finish and tight seal integrity
• Scalloped base loop provides increased clearance in tight mounting areas
• High-quality raw aluminum pistons minimize performance variations
• Laser-engraved black-anodized closure nut for easy identification of valving and serial numbers
• Upgraded seal kit minimizes leaks, especially in high-rebound applications
• Slip-fit compression tube design simplifies rebuild process
• Gland features relief cuts and hyper screw port for easy filling and bleeding

Formerly part of QA1's 51 and 53 series lineup, the 5Q series shocks offer exceptional tunability through bleed shims or drilled bleeds. Compatible with coil-over configurations when used with appropriate conversion kits (sold separately). Racers can rebuild and re-valve these shocks using available tuning and rebuild kits, making them ideal for teams that need trackside adjustability and quick servicing.