Keep your drivetrain locked in and performing at its best with the Thunder Pro Rear Sprocket Fixing Screw — built for strength, precision, and reliability under pressure.

Designed to securely fasten your rear sprocket in place, this Pro-spec fixing screw delivers dependable clamping force to handle high torque, hard acceleration, and aggressive riding. Precision-machined for accurate fitment, it ensures proper sprocket alignment and reduces the risk of movement or loosening.

Manufactured from high-strength, durable materials with corrosion-resistant properties, it’s built to withstand vibration, dirt, mud, and harsh riding conditions. Number 10 in the photo, set of 4.