Shimano Sora RD-R3000 GS 9-speed Rear Derailleur

Is RD R 3000 9 speed compatible with Ultegra Rd 6500 9 speed shifting?

Hello, no, the RD-R3000 rear derailleur is only suitable for ST-R3000, ST-3500 and SL-R3000, SL-3500.

Koloshop.cz

Hello, I tore off the rear derailleur on my road bike and it fell into the spokes and “ruined” several spokes. I bought a rim with an HG201-9 cassette with 11-36 sprockets second-hand. Will it work with this derailleur? Probably not, if it says max 34 teeth? Is there an alternative derailleur, or will I have to buy an 11-34 cassette together with this derailleur? My chainring is 50-34.

Hello, yes, with this derailleur the maximum is 34 teeth on the largest sprocket. Unfortunately there is no other suitable derailleur, and MTB derailleurs won’t shift correctly with road shifters.

Ondřej Technical Support

Is this rear derailleur suitable for a 50/34 chainring and an HG-9 12/25 cassette?

Hello,

for the combination mentioned, a derailleur with a shorter cage is better:

https://www.koloshop.cz/prehazovacka-silnicni-113/Shimano-Sora-RD-R3000-SS-9-st.-prehazovacka.html

Ondřej Technical Support