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  1. #1
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    Replacing crankset on Trek 4500

    what's up all? I'm trying to replace my crankset on my Trek 4500 since it bent out of place (actually came off during a ride!). Just want to get it back into working order. I've removed the crankset, but the Shimano FC-MC08, 22/32/42 teeth, is a pretty old crankset so they don't sell them anymore. I need a replacement.

    All I know about the original crankset is that it's 170mm and that it is a 110-113 mm spindle length.

    http://www.shimano.com/publish/conte...on%20Chart.pdf

    Will this one fit?

    Shimano Alivio Square Taper & Rings MC20 | Buy Online | ChainReactionCycles.com

  2. #2
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    any help would be great ya'll

  3. #3
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    Hi there.

    I am just in the process of replacing the crankset of my 6000. It originally had Shimano Alvio's 175mm 42 32 22 with a 73 x 113 BB.

    I am replacing this set with a Deore Crankset. It is a step up and comes complete with the bottom bracket as mine is shot. I am changing the 175mm crank arm for 170mm as personal preference.

    My Alivios were set up with a 73 x 113 square taper bottom bracket. So it sounds like your set up will work fine if you have a square tapered bottom bracket.

    Hope this helps

  4. #4
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    I bought the Trek 8.3 DS back in March 2012. Long story short I had the remote lockout fork that is on the Trek 8.5 DS put on my 8.3 DS. I noticed that when I ride the bike with the remote fork on lockout for a long duration the fork slowly compresses as I'm riding so when I stop and unlock the fork it "springs" back up. Also, the remote fork does not totally 100% lock out as there is about 1/4" "give" to it (when I press down it bounces). Are the two things I mentioned normal for the remote lockout fork, or is there something wrong with the fork?

    The original 8.3 DS mechanical lockout fork (that comes with the 8.3) seems to 100% lockout and has no "give" to it when I press down on it. And it does not seem to compress as I ride it on lockout. So I was thinking of going back to the mechanical lockout fork that comes with the 8.3 DS because I want the fork to be rigid when I ride it on the pavement.

    If you can answer my questions and give me any additional information/advice I would appreciate it. Thank you!

  5. #5
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    Same problem

    Deezy3z,

    Any luck with the crankset replacement? Had mine fall off on the trail... need a replacement... did the Shimano Alivio Square Taper & Rings MC20 fit?

    Thanks!

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