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  1. #1
    Junior Member David G's Avatar
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    Jun 2010
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    A problem I can't diagnose

    This morning I was about 5 miles into a ride when, I started to feel more rolling resistance than I am used to. It felt like a brake was rubbing. I stopped and checked things out. I couldn't find a problem. The wheels, cranks, and chain all spun fine with no unusual resistance. Both tires had plenty of air. I couldn't hear any unusual noises either. I tried riding again, but the problem persisted. At this point I think it might all be in my head. If it is a legitimate problem it must only happen when my weight is on the bike.

    Does anyone have any suggestions? Am I just crazy?

  2. #2
    Senior Member
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    Aug 2005
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    Pittsburgh, PA
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    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
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    Try taking the bike out again on a level road. When you feel the resistance stop pedaling and see if the bike coasts normally or comes to an abnormally rapid stop. That will tell you if it's a mechanical or physical problem.

    One idea, check for a broken spoke. The wheel may remain true enough to turn freely unloaded but the rim may flex enough under load to rub on the brakes.

  3. #3
    Senior Member MudPie's Avatar
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    May 2004
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    One possibility is a cracked frame. Your weight or exertion could open the crack and cause deformation of the frame. As a result, brakes could rub.

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