Carbon Crank Arm Boot Thermal It features a machined-aluminum barrel

It features a machined-aluminum barrel and piston as well as a Composite Matrix handle and end caps

It packs small

For minimalist packers who want to roll extra light

wherever your workout takes you

Built with durable Thermic Stretch Pro fabric

Carbon Crank Arm Boot Thermal It features a machined-aluminum barrelSRAMs cranks are strong and tough, ready for any kind of ride. So its inevitable that pedal strikes and debris will chip away at the end of the crank. SRAMs Carbon Crank Boot is an upgrade that combats the wear and tear that comes with hard riding. The boot protects the crank from surface damage and keeps the riders style perfectly in tact.