vibration in pedals?

baccodaddy
baccodaddy Posts: 128
edited February 2008 in MTB workshop & tech
bought a carbon rush 4 weeks ago after about a week got a vibration in the pedals which sometimes i felt in the handlebar and saddle ,took it back to lbs who said it was nobbly tyres on tarmac.now why has it not happened on any other bike of mine? could it be the bottom bracket? or chain? i dont believe this tyres on tarmac codswallop please help

Comments

  • nicklouse
    nicklouse Posts: 50,673
    so when do you feel this vibration? pedaling? not pedaling? both? does it change with road speed? or cadence?

    yes Knobbly tyres can give a vibration that can be felt through the bike.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Andy B
    Andy B Posts: 8,115
    Simple test to find out if it is the tyres, swap em for some slicks & see if the same thing happens.

    Vibrations can be hard to track down, have you checked all the bolts on the bike are tight?

    No loose bearings anywhere?
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  • baccodaddy
    baccodaddy Posts: 128
    the vibration is worse when i put power through the pedals seems to be at slow and medium speed not when going quick more when accelerating,have swapped tyres from my other bike which doesnt vibrate the two sets of tyres i,ve used are hutchinson pirahna front and back and nobby nic front and ralph on the rear .just frustrated skint myself to buy bike and its not as smooth as a bike half the price.
  • baccodaddy
    baccodaddy Posts: 128
    to update you bike went back for third time this morning and i explained viration getting worse especially on left hand bends and climbing .left it with them and 20 mins later i get phone call that the swingarm is bent either from bad weld or build ,they are ordering new part.hope this was the cause of my problems ,anyone experienced similar ?

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