Kool Stop D310 Formula B4/XC/FR/DH/B4 Disc PadsThese high-quality brake pads are specifically designed for use with Formula B4/Racing XC, FR, DH and B4 disc brakes. Perfect for replacing your old or worn out existing pads, these provide you with excellent braking power and control on every run. Weighing in at only 22g (approx), this are an ideal choice for riders who want to enjoy efficient stopping performance without adding unnecessary grams to your ride. Features:  Type: Disc  Compatibility: Formula B4/Racing XC, FR, DH and B4 disc brakes  Part Number: D310  Weight: 22g (approx)Buy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.