Crank

jonnydrama
jonnydrama Posts: 4
edited June 2008 in MTB workshop & tech
Hi, im completely new to mountain biking really, have just been doing some down hill riding now and again, which is what my bike is set up for.
However i now want to use my bike more often for longer rides so i need a bigger selection of gears.
At the moment i have a shimano deore set up, and what i want to no is how do i reattach the two chain rings i had removed (at a bike shop)
I really want to do this myself and learn more about how my bike works.
Or would i be better off replacing the whole crank????????????

Comments

  • Splasher
    Splasher Posts: 1,528
    So presumably the bike shope removed your 2 rings, the inner ring bolts, the front mech and the front shifter? Did they give them all back to you?
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."
  • nicklouse
    nicklouse Posts: 50,673
    have a read of parktools webby.

    but to sum up. remove crank arm. undo chain ring bolts fit outer ring. reattach the granny ring with chain ring bolts.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • jonnydrama
    jonnydrama Posts: 4
    hi, yes i have the two inner rings, but no bolts! is that all i need? the four that are on there holding the outer ring on look to short to attach the middle one tho! Does that make sense?
    Thanks
  • Splasher
    Splasher Posts: 1,528
    The 4 that are on there will either be shorter bolts or will have spacers to replace the thickness of your missing ring. With chain-ring bolts, its actually the nuts which are sleeves that locate the rings.

    Did your shop leave the front mech, shifter and cable in place?
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."
  • jonnydrama
    jonnydrama Posts: 4
    No, they didnt but i have the front mech and shifter.
    Will any bike shop be able to sell me the bolts i need?
    Thanks for all the advise!
  • Splasher
    Splasher Posts: 1,528
    Should be able to. They normally come in sets of 5 but don't worry if your chainset is 4 bolt (which it probably will be). You need a standard set which come with nuts and bolts and an inner set which is bolts only.

    You then need the tools to get the crank off. What cranks are they?
    "Internet Forums - an amazing world where outright falsehoods become cyber-facts with a few witty key taps and a carefully placed emoticon."

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