Bike Forums - Rear derailleur replacement

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Pistard

02-02-14 01:40 PM

Rear derailleur replacement

Can I replace my old subtour rear derailleur with a more modern one, or more recent then 1976 or so? do I have to look for something specific? thanks

The Golden Boy

02-02-14 01:49 PM

I suppose you can replace it with whatever will fit. If you don't have a derailleur hanger, you may have to get a hanger- or use the one on your existing derailleur.

What bike and derailleur are you speaking of, and what derailleur were you thinking of replacing it with?

zukahn1

02-02-14 02:12 PM

Just about any nicer RD will work fine for this. You can pick one up off of EBay for under $20.

JohnDThompson

02-02-14 02:16 PM

Sure, just make sure it can wrap enough chain for your gearing. When in doubt, a longer cage will always work.

zukahn1

02-02-14 02:47 PM

If you don't care about being vintage correct you can buy a fairly nice new Shimano Tourney for about $10.
http://www.amazon.com/Shimano-Tourne...ear+derailleur

spacemanz

02-02-14 03:22 PM

Quote:

Originally Posted by JohnDThompson (Post 16461833)

Sure, just make sure it can wrap enough chain for your gearing. When in doubt, a longer cage will always work.

That's the biggest part, make sure it's a longer cage. Sheldon says it's the shift levers & cassette/freewheel that matter, not the RD, & I kinda believe him. ;) I've just switched to a Ultegra RD-6500, from a SunTour XC Pro, because it's just a bit longer cage, & works great. I might have been able to mod the XC Pro to work, but I like having a little margin for error. :)

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