Free 2-Day Shipping on Orders Over $50* – Limited Time Only

These are the bearings and cups that thread into your frame for use with the Shimano Ultegra 6700 crankset. The bearings themselves will actually be outside of your frame, one reason why the 10-speed drivetrain rides with such sublime stiffness. This unit is compatible with both Double and Triple Ultegra cranksets. Available for either English (68) or Italian (70) threading.

  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Will this bb come with spacers to fit a...

Will this bb come with spacers to fit a 73mm shell?

is the bottom bracket ultegra BB 6700...

is the bottom bracket ultegra BB 6700 compatible with a shimano 105 crankset?

depneding on the crankset i have a dura ace bb on my 105 crankset if there both external bb than yes if youre crankset is older and has a square taper or something like that then no it wont fit if u allready have the bb simply try it out if youre looking for one to buy the cheapest route isnt allways the best route i would get the bottom bracket thats made exactly for youre crankset if youre unfermiliar with this take it to a lbs and they will gladly give you helpful advice hope this helps

Where can I find the spec's on the BB of...

Where can I find the spec's on the BB of my BRIDGESTONE 400, so I can upgrade to the newer outside bearing BB?

Generally speaking, basically you need the size of the bb shell on the frame-68mm or 70mm. That will give you the thread size-68mm for english and 70mm italian. There are several ways to determine bb: 1)Remove the BB currently on the bike and it may have specs on it. 2)Measure the shell size (width) on your frame with a caliper (68 or 70mm). 3)99% of the time english bb are threaded opposite each other (one side-the non-drive side-tightens/loosens normally and the other side-drive side-tightens/loosens opposite) while italian bb are threaded normal (right-tight/left loose) on both sides. 4)Try a spare bb in english thread, if it works it's english, if the threads fall through, it's italian. 5)Italian is much rarer than english, but that is more nowadays. If going to external bb you may need a new crankset as well though-your old crank may not have a long enough spindle. Check here:

Is this compatible with the 2009 Shimano...

Is this compatible with the 2009 Shimano Ultegra SL FC-6601/6650-G Crankset?