Rear wheel jumps when Sprinting

ben_b1
ben_b1 Posts: 9
edited October 2018 in Road general
When im sprinting my rear wheel can jump 5 or so cm to the left or right. This happens when I'm sprinting on a climb or flat or good road surfaces, I wondered if I should move my weight further back but I find I can't straighten my legs as much and put out as much power. Any ideas and what should my position be. Should I tilt my bike more?

Comments

  • First.Aspect
    First.Aspect Posts: 17,209
    Sounds like you are a bit wild. Could be one of or a combination of too much side to side tilt (of you and/or the bike). It is also possible that you are doing something violently weird pulling up on your pedals.

    Seems unlikely to be weight distribution on its own though - you see how far the pros manage to get forward without having this problem. And if you watch the pros sprint, there's a lot of action, but the actual bikes remain remarkably still, given the 1500W or so they put out.
  • joey54321
    joey54321 Posts: 1,297
    I'd slow it down and work on technique at ~70-80% or so (the highest % that allows good sprinting form).
  • DeVlaeminck
    DeVlaeminck Posts: 9,106
    You see pros doing it too, I think it's pulling up too much and developing a sprint in a slightly lighter gear at higher cadence should help. I assume it's more in the acceleration phase rather than holding top speed?
    [Castle Donington Ladies FC - going up in '22]
  • Vino'sGhost
    Vino'sGhost Posts: 4,129
    I used to do it and never worked out why, it just stopped one day. About the time i started winning stuff
  • naavt
    naavt Posts: 226
    joey54321 wrote:
    I'd slow it down and work on technique at ~70-80% or so (the highest % that allows good sprinting form).

    +1

    Dig into Joe Friel’s blog. He has some posts about sprinting technique

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