Roadbikes Front Deraileir compatible with mountain crank?

Discuss light weight issues concerning mountain bikes & parts.

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jermans
Posts: 48
Joined: Mon Nov 17, 2003 4:32 pm

by jermans

is it compactible? :cry:

by Weenie


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Frankie - B
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Joined: Mon Jun 02, 2003 8:17 am
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by Frankie - B

why not?
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

jermans
Posts: 48
Joined: Mon Nov 17, 2003 4:32 pm

by jermans

i tried to put road bike clipless pedal on mtb? any comments? any mud clearance? hehe

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Cyco
Posts: 1903
Joined: Sat Nov 30, 2002 4:49 am

by Cyco

The inner curve on a road FD is designed around use with a 52/53t C-Ring. A std MtB FD is designed around a 42/44t C-Ring (XTR 952/3 was designed aroung a 48 ).

Shifting will not be paticularly good as the FD cage does not contact at the right points - it might work in the stand, but not under load.

Joel
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Joined: Fri Jun 13, 2003 1:43 pm
Location: Belgium

by Joel

I have a 39-46 on my cycle crossbike, and it works fine.
I guess you want to use a road derailleur for double chainrings?
Most road derailleurs can only work smooth with a difference of 14t

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Frankie - B
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Joined: Mon Jun 02, 2003 8:17 am
Location: Drenthe, Holland

by Frankie - B

I ride 2 x 9 on my mtb with no problems. You only have to adjust the FD right with the shifters. :up:
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

by Weenie


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