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-   -   Very specific Q : compatibility between RD-6400 & RD-7400 pulley plate / cages (http://www.bikeforums.net/classic-vintage/877140-very-specific-q-compatibility-between-rd-6400-rd-7400-pulley-plate-cages.html)

bloom87 03-10-13 04:58 PM

Very specific Q : compatibility between RD-6400 & RD-7400 pulley plate / cages
 
Are they compatible ? I'm looking to buy a busted Shimano 600 RD w/ a missing outer plate and I have and old 7400 outer plate not being used in my box... more precisely both models are RD-6401 (non aero) and RD-7400....

Thanks in advance,,, ;)

IthaDan 03-10-13 05:39 PM

I have like 3 6401 RDs, be happy to measure c-t-c on the pulley bolts. With that you should have a pretty good sense of it.

Just give me the sign.

bloom87 03-10-13 06:00 PM

7400 pretty short @ 47mm (hole to hole, center to center)

thanks by the way

IthaDan 03-10-13 06:44 PM

Don't let the fractions of milimeters fool you, I'd say they're all 47mm, the error is in my measuring more than anything else. I don't think shimano would make them less than 1mm off of each other.

6401:
http://i.imgur.com/Xa5UJXg.jpg

While I was at it, I picked up some other generations of 600 RDs.
6400:
http://i.imgur.com/zt1Gl5o.jpg

6207:
http://i.imgur.com/84O9G9B.jpg

So, yes, it'll bolt up, whether the inner cage will need a little tweaking is TBD.

bloom87 03-11-13 12:49 PM

thanks a lot. unfortunately someone just sniped the deal off ebay from me... ahahah !


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