Results 1 to 6 of 6
  1. #1
    mtbr member
    Join Date
    Feb 2004

    does tire change of 2.2 -> 2.4 prompt cog change?

    Just curious if anyone has made a relatively large leap in rear tire casing size and felt like the larger diameter should be adjusted for with a higher tooth-count cog. I'm changing from a smallish Conti MK 2.2 in the back to an Ardent 2.4 monster. Maybe it's a negligible difference but It's got me wondering.

  2. #2
    mtbr member
    Reputation: J.B. Weld's Avatar
    Join Date
    Aug 2012
    You can check out the effects that tire size has on gearing here- - Bicycle Gear Inches Chart

    Going from 2.2 to 2.4 does change your gearing some but not enough to warrant switching anything.

  3. #3
    Reputation: stremf's Avatar
    Join Date
    Dec 2012
    Ride and see. But for me, wasn't necessary.

  4. #4
    mtbr member
    Reputation: dbhammercycle's Avatar
    Join Date
    Nov 2011
    I would say no. I used to change from slicks (1.9) to mud tires(2.2), city commuting vs weekend dirt rides, but never felt I needed to change the rear cog. I had to change when I went to 650b, I think going to a larger rim warrants the switch, but not a larger tire.
    I don't know why,... it's just MUSS easier to pedal than the other ones.

  5. #5
    mtbr member
    Reputation: jmmUT's Avatar
    Join Date
    Sep 2008
    I think a major change in weight and rolling resistance might be a reason to adjust. Probably not an issue though for your case.

  6. #6
    mtbr member
    Reputation: rob1035's Avatar
    Join Date
    Apr 2007
    Quote Originally Posted by jmmorath View Post
    I think a major change in weight and rolling resistance might be a reason to adjust. Probably not an issue though for your case.

    Agreed. When I put a heavier, beefier tire out back, I generally end up adding a tooth, but not just for the tire itself, more because I'm going on a bigger, tougher trail ride where I'll need said tire and said gear...

Similar Threads

  1. race tomorrow should I change tire
    By rickymitcham in forum Wheels and Tires
    Replies: 3
    Last Post: 04-20-2013, 04:37 PM
  2. tire differences.......... do they change ?
    By crazee horse in forum Wheels and Tires
    Replies: 4
    Last Post: 11-04-2012, 12:05 AM
  3. Replies: 9
    Last Post: 06-22-2012, 07:08 AM
  4. Instructions on how to change a flat tire
    By Tony777 in forum Beginner's Corner
    Replies: 4
    Last Post: 07-07-2011, 07:28 PM
  5. Tire change makes epic even more fun
    By uzj100 in forum Specialized
    Replies: 1
    Last Post: 06-27-2011, 06:09 AM

Members who have read this thread: 0

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts



VISIT US AT and the ConsumerReview Network are business units of Invenda Corporation

(C) Copyright 1996-2018. All Rights Reserved.