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8 speed cassette sliding

MuttbunchMuttbunch Posts: 11
edited October 2013 in MTB workshop & tech
Hi i just got a wheel put together at halfords and have a question, he has put on an 8 speed cassette without a sprocket so that its a 7 speed, but the smallest cog stays put while the other 6 slide back and forth away from it leaving enough space that the chain could fit in between the two smallest gears is this normal as i have never had a cassette before

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  • nicklousenicklouse Posts: 50,675 Lives Here
    Muttbunch wrote:
    Hi i just got a wheel put together at halfords and have a question, he has put on an 8 speed cassette without a sprocket so that its a 7 speed, but the smallest cog stays put while the other 6 slide back and forth away from it leaving enough space that the chain could fit in between the two smallest gears is this normal as i have never had a cassette before
    so why have they done this?

    get the other cog fitted and then set the stops to allow you to use the 7 cogs you want to use. or gt them to fit a suitable spacer.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Thanks im gonna get a refund, charged me 40 quid but have the same part online for 17!! Will i need to change the chain or the front rings going from a 7 speed to an 8 speed ( buying an 8 speed shifter online)
  • nicklousenicklouse Posts: 50,675 Lives Here
    nope just set the mech to suit.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Nice one cheers, just got t figure out which ratio i need now lol
  • The RookieThe Rookie Posts: 27,802
    I think Nick means just the shifter, most 7 speed mechs will cover 8 just fine.

    Another example of poor Halfords staff quality!
    Current steed - Whyte T129, 2013 frame, mongrel Revelations, Giant dropper, Stans S1 wheelset. 12, Magura Trail Sport brakes, 1x11. 12.8Kg
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