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-   -   Is there a difference in shimano rd2400 / rd 2000 (https://www.bikeforums.net/bicycle-mechanics/1217918-there-difference-shimano-rd2400-rd-2000-a.html)

grayEZrider 11-20-20 08:18 PM

Is there a difference in shimano rd2400 / rd 2000
 
I need to replace a Claris 8 speed RD2400 after trashing one by hitting a stick of firewood; I can't seem to find detailed differences from the RD2000. I am using a KHS 223 with full Claris 3X8 and 35c Panaracer Tour tires as a gravel bike. Can I use the RD2000 and swap the 11/32 cassette to a 11/34 while I'm at it?

Bill Kapaun 11-20-20 10:46 PM

You can use just about any Shimano 8/9 speed RDER with some obscure exception(s).
Many people switch to a "mountain" RDER to handle larger cogs and/or triple chain rings.

grayEZrider 11-21-20 12:07 PM

thanks
 

Originally Posted by Bill Kapaun (Post 21799460)
You can use just about any Shimano 8/9 speed RDER with some obscure exception(s).
Many people switch to a "mountain" RDER to handle larger cogs and/or triple chain rings.

That has been my understanding too but I presumed there had to be a difference between them. After after some more research I found the2400 has a max sprocket capacity of 32 while the newer RD2000 has a max cap of 34. Important in this case. Note my location.

70sSanO 11-21-20 02:55 PM

If a 34t capacity is important, I’d look at a Deore 591 rd. I used to recommend looking for a nearly new XT 750 (eBay) but those are so expensive these days, even for beat up ones.

Of the 7 bikes we have every one has a mtb rear derailleur; from some era.

John

grayEZrider 11-30-20 07:59 PM

thanks- and I found the diff..
 

Originally Posted by 70sSanO (Post 21800247)
If a 34t capacity is important, Id look at a Deore 591 rd. I used to recommend looking for a nearly new XT 750 (eBay) but those are so expensive these days, even for beat up ones.

Of the 7 bikes we have every one has a mtb rear derailleur; from some era.

John

I finally discovered the rd 2000 has a cap of 34 and the original rd2400 is only 32. I managed to find both it and a 11-34 HG50 cassette new for $ 37 total.

dedhed 11-30-20 08:11 PM

https://bike.shimano.com/en-EU/produ...-R2000-GS.html

https://bike.shimano.com/en-EU/produ...D-2400-SS.html


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