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Using XTR on a roadbike...(3 posts)

Using XTR on a roadbike...Jim R
Mar 23, 2001 6:20 AM
I just bought a new frame and I'm going to swap components from my old frame. The front deraileur does not have a clamp, it bolts on and I need a clamp on one. I have a NIB XTR deraileur that is the right configuration but I'm wondering if the cage part will work with a road crank? The XTR deraileur is a non-compact type. Anybody know the answer to this one? Thanks.

Jim R
Shimano clamp adaptorBipedZed
Mar 23, 2001 6:30 AM
Shimano makes a clamp adapter in 1 1/4" (31.8mm)and 1 3/8" (34.9mm)for braze-on front derailleurs. They are around $10-15 at your LBS. Or you could try Excel Sports or Colorado Cyclist.

http://www.excelsports.com/item.asp?major=1&minor=14&description=Front+Derailleur+Clamp+Adapter&vendorCode=SHIM

http://www.coloradocyclist.com/common/products/productdisplay2_v2.cfm?PRRFNBR=10963&CGRFNBR=483&CRPCGNBR=483&CI=1,225,483&TextMode=0

I wouldn't recommend using a triple front derailleur with a double ring road setup, XTR is designed and shaped for 48T max outer ring. You could get it to work probably, but not without problems.
Re think your options ...Breck
Mar 24, 2001 10:54 AM
Bipedzed is right. Been there done that with XTR as used to set up the MTB with slicks to race the road locals. An XTR 48X11 seven speed for the road with a made up cog set back when you could easily break 'em apart and mix and match. So tried to carry this over to the first road frame thinking to use the XTR forged cranks, spare rings, parts, etc.

Had a Real (brand name) 50t down hill big ring. However, the XTR front derailleur would rub the 50t teeth front and rear as the MTB max 48t XTR arc was too tight for even a 50t. Mebee you could fix it with tin snips and redefine the arc but tricky at best.

The practical & minimal cheap solution is to buy a clamp-on 105 front dX for 'bout $25 or less out the door. It works just fine.

cheers
bgcc