Shimano SH51 cleats are a single-release which are slightly more difficult to release compared to the multi-release SM-SH56 cleat

and ventilated harness to keep you cool and comfortable

Hearing Vents help you to stay aware of your surroundings & to hear better

The dual-density EVO chamois provides excellent comfort on any ride

Enduro CO 6903 17mm x 30mm x 7mm Hub Bearing - 17mm - 30mm - 7mm - ABEC-5 Ceramic Radial Bearing - Black Oxide Dropship Shimano SH51 cleats are aCO 6903 LLB BO Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial bearing (C3 clearance) 17mm x 30mm x 7mm Enduro Zero, Ceramic Hybrid, ABEC 5, radial bearing featuring black oxide treated 52100 high Carbon Chromium alloy races paired with Grade 5 Silicon Nitride Ceramic balls, dual lip labyrinth (LLB) seals with 90% fill, high pressure, water proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on