Mountain Biking - what is a 'splined' crankset?

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The Bishop
09-03-03, 11:25 AM
is that a shimano only thing?
Transparent
09-03-03, 11:33 AM
I think splined the the shimano equilent to ISIS... im not too sure though..
sparticus
09-03-03, 11:33 AM
Its not shimano only, But they make the XTR crank interface so its only compatible with an XTR bb. ISIS is also splined, but it is just differently shaped. Splined just means there are those little teeth coming out of the end of the bb (or hub on the new shimano XTR disc brakes)
L J Horton
09-03-03, 12:24 PM
I believe Shimano's is called Octagon. It is spaced differently than ISIS, which is made by other manufacturer's; so you must specify which you want if you order new BB's or cranks.
a2psyklnut
09-03-03, 12:36 PM
OctaLINK, but yeah, it a larger diameter hollow spindle that has "Flutes" or "ridges" on the male side (spindle).
Here's a picture of an ISIS bottom bracket:
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