MTB triple to double and FD question
07-08-08 | 08:14 PM
#1
Thread Starter
The Weird Beard
Joined: May 2005
Posts: 8,554
Likes: 3
From: COS
MTB triple to double and FD question
My Giant Rainier is currently set up with an ISIS drive 48-38-28, and the bottom bracket needs replacing. After learning the downside of ISIS drive BBs, I was wondering if it might be wise to consider replacing the BB with a non-ISIS BB and getting some new cranks, namely a compact double (50-39). I don't use my granny ring at all, and would like the extra two teeth on the big ring. I run an 11-26 cassette.
The main question I have is, if I were to replace these parts of the drivetrain, would my Deore FD need replacing as well? Are the extra two teeth on the new crank going to cause a problem? I figure I can always adjust the FD to ignore the granny position.
The main question I have is, if I were to replace these parts of the drivetrain, would my Deore FD need replacing as well? Are the extra two teeth on the new crank going to cause a problem? I figure I can always adjust the FD to ignore the granny position.
07-08-08 | 08:39 PM
#2
Senior Member
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
The curvature of the cage won't be perfect but I expect the shifting "degradation" will be insignificant.
