Crank Replacement

robsutherlands
robsutherlands Posts: 2
in MTB workshop & tech
Hi currently I have a Shimano M552, 42/32/24 on my trek ex8 2011. It’s now outdated and rather than putting new chain rings on wiggle has an offer of a Shimano SLX M672 Triple Chainset 10 speed 175mm - 40/30/22t Black

as you can see the rings are slightly different.

I wanted to ask will I be able to put this on instead along with a 10 speed cassette.

Thanks.

Comments

  • thistle_
    thistle_ Posts: 7,218
    It should fit fine, they both use the same bottom bracket.
    Check the length of the new crank (175mm) matches your existing, or you're happy with the difference.
    The smaller chainrings on the newer one will give you slightly lower gears than the old one, although the difference is only small.
  • robsutherlands
    robsutherlands Posts: 2
    Thanks. Would you say the new one would be better quality than my old one??
  • reaperactual
    reaperactual Posts: 1,185
    SLX is the next level up from your current Deore crankset so will be better.

    With the outer ring being slightly smaller in diameter than the old one I would advise lowering the position of the front derailleur a little to make sure you get best shifting performance.

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