REGINA CHAIN 520ORO GB 116C 135EB-ORO/016 yamaha-yz-250-f--cg33--250-2011-esi4622485 8mm thick foams are placed

8mm thick foams are placed on each side of the skid plate to prevent friction

Null diameter: 48

Ultra-Durable High Carbon C49 Steel Chain_pitch: 428

Comes with Power Core software that connects dyno runs with our EFI Tuning Devices to unlock your rideﾒs potential

REGINA CHAIN 520ORO GB 116C 135EB-ORO/016 yamaha-yz-250-f--cg33--250-2011-esi4622485 8mm thick foams are placedLarger Diameter Alloy Carbon Steel Pins and Thicker Plates victim Increased Tensile Strength and Fatigue Resistance , Special Extended Bushings Increase The Press Fit Into the Inner Link Plates of the Chain To Ensure A High Resistance to Chain Kinking , Solid Rollers Provide Improved Durability , Shot Peening of Plates, Pins and Rollers to Increase The Fatigue Resistance , All Chains Are Pre Stretched to Increase Fatigue and Wear Resistance , Clip