Rotor Kapic Carbon Bumper Set Don't run the risk of smashing the end of your carbon cranks against sharp rocks. Install a pair of rubber bumpers today. Available in seven different colors, get a set that perfectly matches the colorway of your bike! Features Your carbon crank's first line of defense against sharp rocks Multiple colors to choose from Sold in a set of two, one for each crankarm | Rotor | Kapic Carbon Bumper Set Yellow | Rubber