Shimano UN54 JIS Bottom Bracket 68mm 122mm
Shimano UN54 JIS Bottom Bracket UN73 (XT/Ultegra-level) quality at a UN53 (LX/105-level) price. Traditional square JIS 2-degree taper crank-arm interface. Offered in either 68/73mm English (BC1.37 x 24tpi RH/LH) or 70mm Italian (M36 x 24tpi RH/RH) threads. Item Specifications: Size: 68mm 70mm 73mm Length: 107mm 113mm 115mm 118mm 122mm 127mm
https://m.media-amazon.com/images/I/21F11afY7cL._AC_.jpg
https://m.media-amazon.com/images/I/21F11afY7cL._AC_US40_.jpg
MAIN
SHIMANO
{"Manufacturer": "BICYCLE TECH INTERNATIONAL", "Date First Available": "November 16, 2011"}