Results 1 to 4 of 4
  1. #1
    mtbr member
    Reputation:
    Join Date
    Jan 2019
    Posts
    1

    Getting a wheel for trainer use only - which measurements have to be the same.

    I have a 29'er with 10 x 141mm QR hubs/axle spacing. If I am just getting a wheel to use with a slick tire on a fluid trainer and have no need of brakes, do I have any hub/axle spacing size flexibility on any of those dimensions? I just need the thing to turn properly on a trainer roller. I'm riding tubeless so just switching tires is not an option. 10 x 141mm is a tough size to find cheap and used for this purpose, so hoping to hear that without the need for brakes to line up or center, I have some size flexibility. I am a refugee from road cycling where everything is tidy and standardized. MTBs seem to be presenting a problem using a trainer because of the whole tubeless/knobby/array of standards issue. This dude just throws a road wheel on a mountain bike - how is that doable with different axle/hub spacing? Does it not matter unless you need brakes? Using a Resistance Trainer
    Attached Thumbnails Attached Thumbnails Getting a wheel for trainer use only - which measurements have to be the same.-capture.png  


  2. #2
    mtbr member
    Reputation:
    Join Date
    Mar 2015
    Posts
    1,017

    Getting a wheel for trainer use only - which measurements have to be the same.

    Yes, you need the correct hub width.

    I would look into a wheel off trainer and run a 142 bolt on axle and mill the trainer 142 adapter 1 MM.

    I have milled hub adapters with success.


    Sent from my iPhone using Tapatalk

  3. #3
    mtbr member
    Reputation: Lone Rager's Avatar
    Join Date
    Dec 2013
    Posts
    4,894
    How does the axle interface with the trainer? All wheel-on trainers I've dealt with have cups that center on the ends of the skewer. In most cases, a skewer is supplied with the trainer, or available separately, to ensure it mates correctly and securely attaches the bike and trainer.

    Will your trainer properly engage the axle on your bike?
    Do the math.

  4. #4
    since 4/10/2009
    Reputation: Harold's Avatar
    Join Date
    Dec 2003
    Posts
    24,392
    Quote Originally Posted by FJSnoozer View Post
    Yes, you need the correct hub width.

    I would look into a wheel off trainer and run a 142 bolt on axle and mill the trainer 142 adapter 1 MM.

    I have milled hub adapters with success.


    Sent from my iPhone using Tapatalk
    OP has a QR frame. Open dropouts. 142mm is a thru axle. Just removing 1mm of material from a thru axle adapter wouldn't cut it. IF said direct drive trainer used an end cap swap to change between axle types, then you could probably make your own end caps to get you to a qr141 frame. But a direct drive trainer is still a rather expensive solution.

    To the OP - that QR 141 spec is new enough that the trainer companies don't know what to do with it yet. Direct drive OR wheel-on. It's not easy to find cheap hubs to build a trainer wheel because it's uncommon still for people to even want or need new rear wheels for their QR141 bikes. It's relatively uncommon for people to put mtb's on trainers, so it's going to take the trainer companies awhile to offer longer trainer skewers or adapters for boost qr frames (for direct drive trainers).

    The easiest solution is likely to just buy a cheap road bike to use as a trainer bike.

Similar Threads

  1. Body measurements. Which methods to use?
    By rjx in forum Beginner's Corner
    Replies: 6
    Last Post: 05-06-2014, 05:12 PM
  2. Wahoo Kickr Trainer: Is this the Trainer I've Been Looking For?
    By The Boz in forum XC Racing and Training
    Replies: 6
    Last Post: 01-12-2014, 07:25 PM
  3. need to find a trainer... best deal? fluid trainer?
    By shugarbear in forum Where are the Best Deals?
    Replies: 3
    Last Post: 11-17-2013, 10:24 PM
  4. Personal trainer trainer courses
    By cabbgage in forum XC Racing and Training
    Replies: 6
    Last Post: 12-02-2011, 06:18 PM
  5. 1UP trainer vs Kurt Kinetic Trainer ?
    By StumpyFSR in forum XC Racing and Training
    Replies: 14
    Last Post: 12-11-2006, 01:10 PM

Members who have read this thread: 24

Posting Permissions

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

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.