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wide xtr bottom bracket?

_bp

Monkey
Apr 20, 2004
218
0
Annandale
Is there any option to run an not-the-new one xtr on a bike with a 100 bb shell -- like perhaps a wide xtr bb? Do they make one?
 

Brian HCM#1

Don’t feed the troll
Sep 7, 2001
32,286
395
Bay Area, California
The older style XTR BB's were a 68mm/73mm shell, They don't make an off the shelf 100mm. Its possible that Shimano made custom ones for pro racers, but good luck ever finding one.
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
it has been done, its just pretty expensive, shimano doesnt offer it, i read here that the b1 team ran some custom axles, im guessing you have to get some sort of damn hard steel axle, machine it and then grind the surface and heat treat but that would certainly cost you more than a few sets of cranks.

that or you move down here where labor is cheap.
 

leprechaun

Turbo Monkey
Apr 17, 2004
1,009
0
SLC,Ut
They made some for Foes a few years ago but you will not be able fo find one.
They are making Saint in a 100mm shell option.
 

dexter

Turbo Monkey
Sep 23, 2001
3,053
99
Boise, Idaho
so get the saint bb and then xtr cranks and it should match up but the axle length on the xtr crank arm might not be long enough things to consider
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
dexter said:
so get the saint bb and then xtr cranks and it should match up but the axle length on the xtr crank arm might not be long enough things to consider

the saint bb is attached to the driveside crankarm and the spline is not compatible anyway.
 

DS Dom

Monkey
Nov 14, 2001
213
0
Denver, Co
leprechaun said:
They made some for Foes a few years ago but you will not be able fo find one.
They are making Saint in a 100mm shell option.

A few years ago foes used normal sized BB's. I built up one of the new syle monos' was an '02 and set up a set of xtr's on it. they were 73mm bb shells as far as i know. Unless your talking way back, then i dont know...
 

Bicyclist

Turbo Monkey
Apr 4, 2004
10,152
2
SB
I just got an Ultegra BB for my old XTR's because my XTR bb was too short. I'm not sure what the spindle length was, but check Ultegra BB's out.
 

leprechaun

Turbo Monkey
Apr 17, 2004
1,009
0
SLC,Ut
Sorry to make confusion-
I forgot that the Foes bikes i was speaking of were prototypes with 100mm shells.They never made production.
If your bike has a 100mm bb shell on it then a road bb will not work either,as they are 68mm.
Saint is coming out with a 100mm bb and spindle/crankset that would work but it is Octalink2 (outboard bearings)and the spindle is pemanently pressed into the right arm.
 

punkassean

Turbo Monkey
Feb 3, 2002
4,561
0
SC, CA
bp,

you will need to go custom or forget it.

I'm still running my old XTR's on my XC/FR bike they are the shizzle. The longest spindle the made was a 116.5 or 188mm can't remember but as someone said you can use Ultegra or Dura Ace as they are the only other octalink BB's with compatible splines. I'm not a big fan on 100mm BB's for this reason...

Krispy said that Saint is available in 100mm I'd go that route for sure. I've been very happy with mine on the DH bike.