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Need to replace my crankset... what are my options?

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Need to replace my crankset... what are my options?

Old 06-19-07, 05:56 AM
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bhtooefr
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Need to replace my crankset... what are my options?

I've looked on Harris and Nashbar, and everything seems to be 7-speed on up specific. Either that, or single-speed specific, lol.

(Actually, I think I'll go through and replace the entire drivetrain while I'm doing this.)

Anyway, my large chainring seems to have a habit of bending (it did it a second time,) so I need to replace it. Problem is, it's riveted, and that means replacing the entire crankset, right?

I'd like a bit lower ratio on the small chainring - 40 tooth isn't QUITE small enough for some of the hills I climb. If there's room for a triple, I have NO problem with that. Front derailer is a Shimano FD-Z202, FWIW.

As for the freewheel, I don't care... 5-spd is fine. I like the 14-28 as it is, but I want to go through and replace everything while I'm in there. I don't know what's on there now, and don't know how to tell.
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Old 06-19-07, 06:06 AM
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Dimes to doughnuts, you're going to have to replace your bottom bracket as well, as they're designed to be compatible. I would find a cheap crankset and figure out what the dimensions of the bottom bracket need to be.

If you're planning on replacing the whole drivetrain, you might want to look into just buying another bike. It will probably be cheaper, unless you're a super EBay shopper.
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Old 06-19-07, 06:31 AM
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For an older 5/6 speed setup I would look for an 80's Shimano 600 crankset on ebay. Something like this one. Bid cheap on several. Should be able to pick up crank & BB for $30 or so.

To change to a triple you'd need to replace your FD. too.
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Old 06-19-07, 06:31 AM
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Bah, then I'll just keep it as is, at that point, and keep my 14mm wrench with me... (it turns out to be PERFECT for unbending that chainwheel...)

Edit: vpiuva: hmm...
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Old 06-19-07, 07:19 AM
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Square taper crank = $50 or less. New bb $30 or less.

Here's 105 square taper crank: $30 http://www.chucksbikes.com/store/cr020.htm
105 octalink: $50 http://www.chucksbikes.com/store/cr035.htm

BB is trivial once you decide what crankset you're going to get.
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