Bottom Bracket Help-
I am looking at picking up a new Black 105 Crank. I do not understand the bottom brackets though. Can I order an Ultegra or Dura-Ace Bottom Bracket and it will work fine with the 105 crank or do I need to get the 105 BB? Are there some real advantages to buying one of the higher level BBs?
This is a probably a very elementary question, but I appreciate your help.
DA, Ultegra or 105
So, whats the difference between the sealed cartridge types and the hollow ones? I am pretty certain I need the hollow type, just curious what the difference is?
Also, I would need 68 which is English Threading, correct?
Insane Bicycle Mechanic
68mm is the width of the bottom bracket shell for a standard English BB, so, correct.
Originally Posted by hokiesean24
The bottom bracket type needs to match your crank. If it's the latest series 105 crank, you need the parts for the hollow spindle. A sealed cartridge BB is probably the older Octalink type, which is for a different crank.
It's helpful if you include URL's when you're asking about compatibility. For instance, this crank:
takes this BB:
(or Ultegra or Dura-Ace)
Thanks Jeff. Thats pretty much what I was thinking, I just wanted someone to confirm I was correct. I appreciate it!