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 Post subject: MTB front derry?
PostPosted: Fri Jun 17, 2011 10:03 am 
P.o.T.M. Winner / MacRetro Rider
P.o.T.M. Winner / MacRetro Rider
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Joined: Fri Jan 23, 2009 1:03 am
Posts: 5502
Location: In the foothills of the foothills of The Cairngorm Massif :D
Haven't done this before so wondering if its possible to fit a MTB triple front derry to a roadbike fitted with triple chainrings, or if a specific roadie one is required?

See no reason why mtb one wouldn't work, but you know how fickle bike components are when it comes to interchangeability :D

Anyone know for sure?


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 Post subject:
PostPosted: Fri Jun 17, 2011 10:21 am 
retrobike rider
retrobike rider

Joined: Sat May 29, 2010 3:44 pm
Posts: 1508
Location: Leeds
I have a 734 chainset and front mech worked by a triple road lever, it is fine.


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 Post subject:
PostPosted: Fri Jun 17, 2011 11:56 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8221
Location: New Forest, UK
Shimano (bless 'em) have different pull per click between road and MTB front mechs.

So, if you are using STI you can encounter a problem - obviously non-indexed shifting is fine.

There is a solution, which is to correct the leverage on the MTB front mech by clamping on the wrong side of the pinch bolt. Details are on the CTC forum.
http://www.ctc.org.uk/DesktopDefault.aspx?TabID=%204068


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 Post subject:
PostPosted: Fri Jun 17, 2011 4:43 pm 
P.o.T.M. Winner / MacRetro Rider
P.o.T.M. Winner / MacRetro Rider
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Joined: Fri Jan 23, 2009 1:03 am
Posts: 5502
Location: In the foothills of the foothills of The Cairngorm Massif :D
Maybe I should say at this point its a campag chainring :P and will be Suntour or Shimano derry :lol:

All other components shifters rear derry etc are Campagnolo :P


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