Shimano BB-UN300 English Square-JIS 68 x 127.5mm Bottom Bracket recumbant Designed with the rider in

Designed with the rider in mind

Pearl Izumi gave this jacket a relaxed fit to allow for multiple layers of insulation

vinyl dipped handle for leverage and comfortable use

At the opposite end is a precision closed 15mm axle nut tool that’s angled to provide ample clearance away from wheels

M6 stainless steel bolt with integrated washer

Shimano BB-UN300 English Square-JIS 68 x 127.5mm Bottom Bracket recumbant Designed with the rider inSHIMANO Square Type Bottom Bracket MTB Standard Structure SHIMANO quality performance cartridge bearing square bottom bracket Better chainline stability with chain line stabilizer 3 structures available Standard, E type, chain case options Adapter material: Aluminum