I know, I know. Get the ISIS... XTR sucks... but my LBS knows how to properly install XTR splined BB/cranks. Just get it TIGHT! AND TIGHTER!
The real question is 4-arm vs 5-arm XTR - the 4-arm can be had for $225, and the 5-arm is virtually unfindable. Cambriabike.com has it for $325 (EXCUSE ME?).
Why does everyone say 5-arm? Ring compatibility?
There is a different gear setup:
5-arm: 48-36-26
4-arm: 46-34-24
I ride in Tex, where we don't have lots of sick climbing, so what diff on the gearing? I race, and like to go fast...
The real question is 4-arm vs 5-arm XTR - the 4-arm can be had for $225, and the 5-arm is virtually unfindable. Cambriabike.com has it for $325 (EXCUSE ME?).
Why does everyone say 5-arm? Ring compatibility?
There is a different gear setup:
5-arm: 48-36-26
4-arm: 46-34-24
I ride in Tex, where we don't have lots of sick climbing, so what diff on the gearing? I race, and like to go fast...