gears

Discussion in 'Bicycle Mechanics and Repairs' started by stephen.rooke, 11 Aug 2012.

  1. stephen.rooke

    stephen.rooke Senior Member

    my sisters bought a bike from tesco :wacko:

    has a couple of problems, 1st being a buckled front wheel which i can easily fix.

    the others is the gears, its a tripple setup with gripshifts. ive had a go trying to set it up properly. obviously has problems with cross chaining but set it so the gears shell use the most are quiet.

    the problem im having is the big ring on the front, it wouldn't engage so i adjusted the deraillure and now when you turn the gripshift it goes too far and the chain comes off, if i turn the screw slightly to reduce the travel it doesnt engage again. i had no problems adjusting my triban but this is confusing lol. im not very experienced with bike mechanics apart from what i have taught myself.

    ive suggested getting it serviced at the lbs wanted another go at it first, is there anything i should be looking at.

    i loostened off the cable to set it up with no tension running smooth, then reattached and adjusted the screw when on the big ring to stop the travel going too far

    what am i missing on this :biggrin:
     
  2. jim55

    jim55 Über Member

    Location:
    glasgow
    set the limit screw so its not gona let the chain come too far across the ring and then no matter how much you twist the selector it wont go past that point
     
  3. OP
    OP
    stephen.rooke

    stephen.rooke Senior Member

    tried that but then it wouldnt go far enough to enagage, ill give it ago tomorrow, was tired when i tried last time :d
     
  4. jim55

    jim55 Über Member

    Location:
    glasgow
  5. jim55

    jim55 Über Member

    Location:
    glasgow
    That's for the rear cluster mostly but it's the same principle for the front
     
  6. jim55

    jim55 Über Member

    Location:
    glasgow
  7. marzjennings

    marzjennings Veteran

    Is this a new bike purchased from Tesco with a buckled front wheel? If so, take it back, get your money back, and go buy a bike from a bike shop.
     
    mchunt likes this.
  8. OP
    OP
    stephen.rooke

    stephen.rooke Senior Member

    I told her but she wont
    I've had a bike from tesco before but never again
     
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