Join Date: Jan 2012
Bikes: 2008 Black/Onyx Trek 6000
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73mm X 113mm vs. 73mm x 118mm bottom bracket
I have a Shimano 104/64 4-bolt Octalink crankset which came from Trek with a 73mm x 113mm Octalink ES25 bottom bracket. I replaced it with a 118mm bottom bracket and see the front derailleur doesn't quite line up on the chainrings. Is this just a simple cable adjustment or will this half centimeter cause problems? Are these Shimano cranksets very close in tolerance so any deviation from factory specs will cause shifting problems? I've begun doing my own rebuilds and am just learning how to dial in the derailleur adjustments - there's definitely a learning curve here.
Anybody have any advice it would be greatly appreciated.
Last edited by NineNine7; 01-27-12 at 04:18 AM.