Gear jumping

lfc_westy
lfc_westy Posts: 87
edited May 2009 in Road beginners
hey got my new bike last week (think it was thrusday) and ive been riding on it, done about 60 miles since then including a 15 mile race. i havent dropped it or anything or bent the derauiller but it keeps jumping gears when i start to accelerate. its becoming more and more frequent and its going to cause an accident one day as ive alomost lost control after my foot slipped out my clip.

my bike is a careera virtuoso and it has the standard grouppo
i am gonna take it back to halfords [grr!] but i think i might confuse them as i did when i asked them what groupset came with the bike.

any ideas ?
It Never Gets Easier, you just get Faster and luckier.

UEA Road Captain

Planet X SL pro carbon - sram rival

Comments

  • Mister W
    Mister W Posts: 791
    Have you checked the indexing? It should have been set up correctly by the bike shop but Halfrauds aren't always known for having decent bike mechanics.
  • rally200
    rally200 Posts: 646
    If it's been getting progressively worse then its probably just the cable stretching, this always happens with a new cable so don't worry - try screwing out the barrel adjuster on the mech or on the down tube by one eight to one quarter to take up the slack
  • sicknote
    sicknote Posts: 901
    Hi
    Try looking Here
    For all you need to know :)
  • ohlala!
    ohlala! Posts: 121
    Hi,

    First check your chain for tight links. If your chain is OK try by re adjusting front and rear derailleur - starting with the rear one first. Oh and don't just dial the screws but actually loosen the cable first and then adjust it again. Usually it's because the jockey wheels aren't aligned properly.

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