35mm bar diameter for incredible strength/weight ratio

ensuring rider comfort

These are a must have item when using carbon cranks

5° HA | -15mm BB Height

1x foam ring 34mm

Race Face Crank Boots Pair - Red - Small - Alloy Do Not Ship Internationally 35mm bar diameter for incredibleProtect your carbon or alloy cranks from the abuse of trail riding. These are a must have item when using carbon cranks. We use these boots with our Race Face cranks and they have held up extremely well and have done an exceptional job protecting the crank arms. No more worrying about bashing your crank arms on rough trails! To install, remove pedals and slip over the end of your crank arms. Medium Carbon Compatibility: Sixc Cinch Sixc (24mm Spindle)