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Bike control when sprinting

  • 21-02-2012 11:43pm
    #1
    Registered Users, Registered Users 2 Posts: 1,315 ✭✭✭


    Practicing a few sprints over the weekend and my back wheel was jumping all over the place.

    Any tips?

    I doubt that the initial "jump" was too hard (or can be!) and I was using the drops.


Comments

  • Closed Accounts Posts: 6,679 ✭✭✭bcmf


    Is it possible that your back wheel was spinning on a greasy surface?
    For your back wheel to be bouncing...either means you are doing it wrong or something isnt right mechanically
    Effectivley (presuming you are outta the saddle) you should be pulling on the bars as you pedal.


  • Moderators, Science, Health & Environment Moderators Posts: 11,669 Mod ✭✭✭✭RobFowl


    chakattack wrote: »
    Practicing a few sprints over the weekend and my back wheel was jumping all over the place.

    Any tips?

    I doubt that the initial "jump" was too hard (or can be!) and I was using the drops.


    Work on your core stability and this should help. Practice I suppose too. Hard to judge the initial kick as you do want it to be as hard as possible but if it's jumping about will reduce speed.


  • Registered Users, Registered Users 2 Posts: 1,059 ✭✭✭victorcarrera


    That is normal in the wet but Sat + Sun were dry so don't lean too far forward over the bars in the acceleration phase. Small bumps on the road can cause the back wheel to bounce a little too.


  • Registered Users, Registered Users 2 Posts: 303 ✭✭Lazairus


    when you sprint , its important to pace yourself

    Ie you want to build it up like a crescendo

    practice sprinting between two different markers (signs,lampost etc)

    are you using tubs? are your tires worn?

    I find the most sprinting(end of races) ive done, last year, were on a slight incline.

    let me know

    CH


  • Registered Users, Registered Users 2 Posts: 1,315 ✭✭✭chakattack


    Like Victor said it was dry, maybe leaning forward too much at first.

    Practice and trial and error I suppose.

    Thanks all


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  • Registered Users, Registered Users 2 Posts: 1,315 ✭✭✭chakattack


    Lazairus wrote: »
    when you sprint , its important to pace yourself

    Ie you want to build it up like a crescendo

    practice sprinting between two different markers (signs,lampost etc)

    are you using tubs? are your tires worn?

    I find the most sprinting(end of races) ive done, last year, were on a slight incline.

    let me know

    CH

    Almost new tyres and clinchers. Pan flat road. I practice them on inclines too but don't have the same problem.

    I try to jump as hard as I can, then accelerate by going from 80 to 120+ rpm and then hold it as long as I can.

    Maybe I shouldn't worry so much about the jump part. I'm losing traction and speed because of the wheel jumping.


  • Registered Users, Registered Users 2 Posts: 68,190 ✭✭✭✭seamus


    Keep your shoulders behind the hub on your front wheel.

    If you're standing up, your cadence shouldn't be that high. 120rpm means that you'll waste a lot of energy just maintaining stability. If your cadence goes over 90rpm then either drop a gear or drop into the seat.

    When standing, aim to minimise the side-to-side movement of the bike. This delivers maximum power while sprinting with maximum stability.


  • Registered Users, Registered Users 2 Posts: 20 keno111




  • Registered Users, Registered Users 2 Posts: 706 ✭✭✭QueensGael


    for clothing, esp for commuting, I recommend using merino wool. It's got good insulation properties and is pretty stink-free.

    Urban Frog is an Irish company selling them online (also in some retailers, on sale at Joe Daly's in Dundrum if that helps).

    https://www.urbanfrog.ie/


    Also recommend using panniers if you're commuting. I find it a lot better than having a backpack stuck to me. I have a slightly cheaper version than this, holds laptop, change of clothes, make-up bag - the essentials :)
    http://www.wiggle.co.uk/altura-urban-dryline-17-inch-briefcase-pannier/


  • Moderators, Sports Moderators, Regional South East Moderators Posts: 11,394 Mod ✭✭✭✭Captain Havoc


    QueensGael wrote: »
    for clothing, esp for commuting, I recommend using merino wool. It's got good insulation properties and is pretty stink-free.

    Urban Frog is an Irish company selling them online (also in some retailers, on sale at Joe Daly's in Dundrum if that helps).

    https://www.urbanfrog.ie/


    Also recommend using panniers if you're commuting. I find it a lot better than having a backpack stuck to me. I have a slightly cheaper version than this, holds laptop, change of clothes, make-up bag - the essentials :)
    http://www.wiggle.co.uk/altura-urban-dryline-17-inch-briefcase-pannier/

    Wrong thread? Which one would you like me to move it to?

    https://ormondelanguagetours.com

    Walking Tours of Kilkenny in English, French or German.



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  • Administrators, Social & Fun Moderators, Sports Moderators Posts: 78,456 Admin ✭✭✭✭✭Beasty


    keno111 wrote: »
    Yeah ... dodgy looking character in that first picture though ...


  • Moderators, Politics Moderators, Sports Moderators Posts: 24,269 Mod ✭✭✭✭Chips Lovell


    Beasty wrote: »
    Yeah ... dodgy looking character in that first picture though ...

    And the second. ;)


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