QA1 5Q75-1 5Q Series Twin Tube Shock Absorber 7in Stroke Large Body Circle Track

The QA1 5Q75-1 is a high-performance twin tube shock absorber designed specifically for circle track racing applications. Formerly known as the 51 and 53 series, this large body steel shock features a 7-inch stroke with a bearing mount configuration and 5C/1R valving for optimal track performance.

Key Features:

• Large 2-1/16 inch body diameter twin tube design with bearing mount eyelets
• 7-inch stroke length with 5 compression/1 rebound valving
• Two-piece body construction allows for quick disassembly and reassembly
• Rebuildable and re-valvable in minutes using basic tools
• Laser-engraved, black-anodized closure nut for easy serial number and valving identification
• Upgraded seal kit minimizes leaks, especially in high-rebound applications
• Gland features relief cuts and hyper screw port for easy filling and bleeding
• Slip fit compression tube design simplifies the rebuild process
• Black zinc coating ensures consistent finish and tight seal
• Scalloped base loop increases clearance in tight mounting areas
• Raw aluminum pistons minimize variations found in anodized parts
• Compatible with coil-over configurations using appropriate kits (sold separately)
• Tunable with bleed shims or drilled bleeds for maximum adjustability

Ideal for Street Stock, Hobby Stock, B-Mod/Sport Mod, and Modified racing classes, the 5Q75-1 delivers the performance, consistency, and tunability that serious racers demand. This shock can be quickly re-valved at the track to adapt to changing conditions, giving you a competitive edge when it matters most.