Shimano Ultegra Bottom-Bracket SM-BB6700 HollowTech II Compatibility and Specs

Shimano Ultegra Bottom-Bracket SM-BB6700

HollowTech II Bottowm Bracket

SM-BB6700 is available in 2 threading type; English type (BSC) 68mm and Italian type (ITA) 70mm type.
95% of bicycle frames are built with 68mm BB shell, if your bike was handbuilt in Italy there is a bigger chance that it features an Italian threading. You must check with frame builder.

BB threading: JIS(68)/ITALIAN (70)mm
Chain line: 43.5mm (double)

You'll need Shimano BB tool TL-FC36 Bottom Bracket Unit Installation Tool for installation or removal.

Japan Retail price 1.978 yen (see cross rate here)

Compatible with Shimano 10 speed crankset: FC-5700, FC-5750, FC-5703, FC-6750, FC-6700, FC-6703, FC-7900, FC-7950 but also FC-7800, FC-6600, FC-6601G, FC-6650G, FC-5600, FC-5600L, FC-5650, FC-5650L, FC-R600, FC-R550, FC-7803, FC-6603, FC-6604G, FC-5603, FC-5603-L, FC-R553, FC-4500, FC-4550, FC-4550-S, FC-3450, FC-4503, FC-3403.

This is for road bike usage will also works for cyclo-cross / randonneur / touring, etc...