QA1 5Q74-850R 5Q Series Twin-Tube Circle Track Shock Absorber

The QA1 5Q74-850R is a rebuildable twin-tube circle track shock absorber designed for racers who demand performance, consistency, and tunability. Part of QA1's 5Q Series (formerly known as 51 and 53 Series), this large body steel shock features eyelet mounts and is specifically engineered for circle track applications including Street Stock, Hobby Stock, B-Mod/Sport Mod, and Modified racing classes.

Key Specifications:

• Extended Length: 20.80 inches
• Collapsed Length: 13.88 inches
• Body Diameter: 2.063 inches
• Rebound Adjustable Valving: 4/850
• Mount Style: Eyelet upper and lower
• Construction: Large body steel with black zinc coating

Performance Features:

• Rebuildable twin-tube design allows racers to re-valve and rebuild in minutes using basic tools
• Two-piece bodies make disassembly and reassembly simple and quick
• Rebound adjustable piston rod enables trackside valving adjustments
• Laser-engraved, black-anodized closure nut for easy identification of serial numbers and valving
• Upgraded seal kit minimizes leaks, especially in high-rebound applications
• Slip fit compression tube design simplifies the rebuild process
• Gland features relief cuts and hyper screw port for easy filling and bleeding during assembly
• Black zinc coating ensures consistent finish and tight seal every time
• High-quality raw aluminum pistons minimize variations found in anodized parts
• Coilover compatible with appropriate kits (sold separately)

Tunability:

This shock can be valved using bleed shims or by drilling out bleeds to maximize tunability for specific track conditions. Racers can rebuild and re-valve their shocks using QA1's available tuning and rebuild kits, providing maximum flexibility for different racing applications and track conditions.

Sold individually. Perfect for circle track racers who need professional-grade suspension performance with the ability to tune and maintain their own equipment.