Problem Solvers ChainSpy 28.6mm to 31.8mm Clamp Black Saddle Cut Out-No XR 391 Rims are durrable

XR 391 Rims are durrable and designed for rough terrain ready for your next wheel build

Center cutout reduces perineal pressure improve blood flows and reduce numbness when the hips are rotated forward in an aggressive pedaling position

X-GLIDE 2 improves both inboard and outboard shifting as well as chain retention

Each are available separately and are not included with aftermarket shocks

8mm 44cm Carbon

Problem Solvers ChainSpy 28.6mm to 31.8mm Clamp Black Saddle Cut Out-No XR 391 Rims are durrableProblem Solvers ChainSpy 28. 6mm to 31. 8mm Clamp Black. The Problem Solvers ChainSpy Chain Deflector keeps an ever watchful eye on your chain while youre looking at whats in front of you. Not intended for downhill aggressive or trick riding Alloy clamp & slider Plastic guide TECH SPECS Color Black Front Derailleur Clamp 31. 8 (1 1 4")