if you ride aggressively

With lightweight fabrics and a quality removable chamois

and one that's comfortable to boot

an anatomically curved last that eliminates hard angles and conforms better to the natural contours of the foot

Enduro CH 699 9mm x 20mm x 6mm Bearing - 9mm - 20mm - 6mm - Ceramic ABEC-5 Radial Bearing - C3 PDP|PLP|Rail Material if you ride aggressivelyCH 699 LLB Ceramic Hybrid, ABEC 5 Radial Bearing (C3 clearance) 9 x 10 x 6mm This ABEC 5, Ceramic hybrid bearing features deep groove design 52100 high Carbon Chromium alloy races, with grade 5 Silicon Nitride Ceramic balls, dual lip labyrinth (LLB) seals to withstand the outside elements, and to contain the 90% fill Kluber NBU52 ultra smooth and sticky, water proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by