Shimano SM-BB71 41mm Press Fit Bottom Bracket - 24mm - BB89.5 - BB92 MTB 89.5-92mm Shell YGroup_7033428541485 The knee protector conforms to

The knee protector conforms to the toughest EN 1621-1 Level 2 standards and features a highly efficient ventilation system to stop the wearer from overheating

casually styled

you can easily hang them up

Stiff rear rim supports peak loads and enhances stability and tracking at speed

Shimano SM-BB71 41mm Press Fit Bottom Bracket - 24mm - BB89.5 - BB92 MTB 89.5-92mm Shell YGroup_7033428541485 The knee protector conforms toThe Shimano BB71 Road Press Fit Bottom Bracket is a complete Ultegra level component for use with Shimano HollowTech II road cranks. Features: MTB (89. 5 92mm width), 41mm, ID press fit Steel, sealed bearings in press fit, internally sealed composite cups