Alienation Vice-Grip U-Brakematerial: forged aluminum type: front and rear brake compatible u brake includes: double lugged straddle cable cable hanger array of hardware for adapting the brake to every possible set up sold per piece additional information: Designed to offer more room for larger modern tires Rigid design and superior materials make for a smooth, responsive, yet powerful braking experience Low profile spring adjustors for improved clearance Alloy cable hanger and