Is this Sora rear derailleur (rd r3000 gs) actually compatible with 8 speed cassette or is it seller mistake? Can't find any other information online. : r/bikewrench
8 Speed Shimano Sora RD-2300 Medium Cage Rear Derailleur
Shimano Cs-Hg50 Sora Bicycle Cassette (8-Speed. 12/25T. Silver) – Movatik