Results 1 to 2 of 2
  1. #1
    MJ1 is offline
    mtbr member
    Join Date
    Jun 2004

    Please explain why wide rims are better

    I think I understand the basic concept of why a wider rim is better, ie more tire support and how it puts more tread on the ground, which both support better traction. But is there a limit? At some point it has to significantly increase rolling resistance right? What is the "sweet-spot" for XC racing? How does a wider rim increase air volume, heard that a few times. With a wider rim do you drop down a tire size? Right now I run 19 mm rims with a 2.25 front and I do find it a little squirrely at low pressure (20-22 psi for 160 lb rider). Looking at the Roval SL's at 22 mm, the LB's at 23 mm, I9's at 23 mm, and at the far end of the spectrum the new AC Wide Lightning at 30 mm. I lack confidence in pushing my tires into corners so I'm hoping a wider wheel will help. Thanks for your help.

  2. #2
    mtbr member
    Join Date
    Aug 2011
    A bigger footprint will give you better traction. It will also flatten out the tire somewhat. Are you running tubeless? The other limiting factor is the rear triangle for tire spacing. Racing? vs rolling resistance? I'm more of a max traction kind of guy.

Similar Threads

  1. Wide 29er rims
    By sbruton7 in forum 29er Components
    Replies: 41
    Last Post: 06-22-2016, 12:39 PM
  2. not all 21mm wide rims the
    By twenty6black in forum Wheels and Tires
    Replies: 10
    Last Post: 02-16-2012, 02:26 PM
  3. Who needs wide rims?
    By shiggy in forum Fat bikes
    Replies: 11
    Last Post: 01-14-2012, 05:48 AM
  4. Wide Rims
    By Jwind in forum All Mountain
    Replies: 9
    Last Post: 10-24-2011, 08:28 AM
  5. Any wide rims available in EU
    By simen in forum Fat bikes
    Replies: 2
    Last Post: 03-28-2011, 01:54 PM

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.