Shimano BB-UN300 Square Taper Bottom Bracket - 68x122mm BF Apparel Silicon coated strap: length: 270mm

Silicon coated strap: length: 270mm / width: 38mm

Affixes with either straps or braze-ons

A new standard in external bearing performance

The round shape of the SCRATCH M5 allows the pelvis to rotate naturally

The saddle's position can be precisely adjusted via a secure two-screw clamp

Shimano BB-UN300 Square Taper Bottom Bracket - 68x122mm BF Apparel Silicon coated strap: length: 270mmThe quality and performance oriented Shimano BB UN300 cartridge bearing bottom bracket features a JIS square taper mount and is designed for frames with BSA thread and 68 mm shell width. A stabilizer ensures a constant chain line. Specifications Adapter: aluminum (left), aluminum steel (right) Axle: steel Mfr Claimed Weight TBC