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Shimano Rear Derailleur Compatibility (Old MTB)

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Shimano Rear Derailleur Compatibility (Old MTB)

Old 07-21-10, 12:02 PM
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lightning60
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Shimano Rear Derailleur Compatibility (Old MTB)

Hello-

I'm not sure what your cutoff for 'Classic' or 'Vintage' was, so I thought I would give you guys a try.

My commuter is a 1988 Cannondale MTB with a Deore RD. Part number is RD-MT60. The bike currently has a six-speed freewheel and has SIS thumbshifters.

The RD has seen better days and parts are starting to fall off. I would like to replace it and am wondering what units would fit.

Is it true that the number of speeds is determined by the shifters and not the derailleur? Would any modern long cage Shimano MTB derailleur work?

I'm constrained by price and would like to pick up a direct replacement that will give me at least several thousand more miles. I'll probably end up on ebay, but I need to know what I am looking for.

Thanks in advance for any help you can offer.

-Travis
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Old 07-21-10, 12:24 PM
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WNG
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Yes, that's correct, with the exception of the pre '1996 Dura Ace line. But that doesn't apply to you.
Any current Shimano RD will work with your SIS shifters.
For longevity reasons, I'd pick another Deore RD. They are all metal construction as opposed to the lower lines (Altus, Tourney, Acera, Alivio) that incorporate plastic body parts.
Some older models of these lower lines were constructed without plastic. Shop around and you'll find a good deal on one.
I picked up a new, old stock late 90s Deore from Nashbar.com for $13.
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