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-   -   Rear derailleur compatibility (https://www.bikeforums.net/road-cycling/1143633-rear-derailleur-compatibility.html)

Rkman 05-09-18 02:10 PM
Rear derailleur compatibility
 
I was wondering if you could use a 9 speed mountain bike shifter with brifters. Specifically the 9 speed Acera rear derailleur with the Shimano sora st-r3000.

mcours2006 05-09-18 03:04 PM
Nine-sp mtb cassette should have the same spacing as 9-sp road cassette. Therefore, the shifter/derailleur should have the same spacing intervals. So yes, it should work. My question is why? Did you crash and break the Sora RD?

Rkman 05-11-18 02:29 PM
Originally Posted by mcours2006 (Post 20331493)
Nine-sp mtb cassette should have the same spacing as 9-sp road cassette. Therefore, the shifter/derailleur should have the same spacing intervals. So yes, it should work. My question is why? Did you crash and break the Sora RD?
I am converting from flat bar to road bike


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