Shimano's newest cartridge bottom bracket is the UN55. Choose axle length. 68mm Width (Standard)
- For 19mm crank spindles and threaded Euro bottom bracket frames. - High-quality four bearing design with aluminum cups.
- Made to fit crank spindles and press-fit Mid BB frames. - Simple and easy to install. - Includes an assortment of spacers to optimize chainline and crank clearance. - Odyssey 6061-T6 aluminum dust spacer included.
68x103mm Square Taper JIS Catridge Type BB, Shimano compatible CroMoly JIS square taper hollow spindle. Steel cups Made in Japan by Tange for IRD Most affordable 68x103 BB! BB Shell Width: 68 mm Spindle Length: 103 mm BB Thread Type: English/ISO Spindle Interface Type: Square Taper This is about…