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replacing crankset

crispy1980crispy1980 Posts: 310
edited June 2012 in MTB workshop & tech
ihave a square taper crankset that i want to remove and replace with new, i have seen the online guide that uses a crank extractor. question is,do i really need this tool or is there another ( bodge ) way of removing it? cheers, chris


  • sethysethy Posts: 14
    Three techinques; You will probably need to use them all if you are bodging, coupled with plenty of mutterings and cursing under the breath!

    1) use a hammer and knock them off (gently!)
    2) ride round until they work themselves loose and fall off
    3) pull, really really hard

    Take care not to damage the taper on the axle!
  • oodboooodboo Posts: 2,171
    4) buy a crank extractor, they're only a few quid.
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  • cooldadcooldad Posts: 32,599
    oodboo wrote:
    4) buy a crank extractor, they're only a few quid.
    This, that's why they sell them.
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  • crispy1980crispy1980 Posts: 310
    my presumptions have made me appear extra tight fisted. i didnt actually look how much an extractor was, assumed they would be around the £20 mark! will get one ordered.
  • delcoldelcol Posts: 2,848
    if you are putting a new crank on and not reusing the square taper bb you could hack saw through the axel,, it aint easy though,, had to do this on a old bike once as the crank arm had seized and broke the exctor tool, all the whacking with a hammer and soaking in oil would not shift it,, but the hack saw did...

    it's a lot easier to use a crank extactor though.. (if it's not seized.)
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