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
Can I use a 9-speed shifter with a 8-speed cassette? - Bicycles Stack Exchange
8 Speed to 10 Speed Cassette UPGRADE, Freehub Compatibility, Altus HG31 to SLX HG81 - YouTube
Box Four 8 Speed Wide Rear Derailleur
FOMTOR Cassette 8 Vitesses, 11-32T Pignon de Vélo, Pignon de Roue Libre, Accessoires pour VTT, Vélo de Route, BMX, Dérailleur SRAM, pour Shimano Sram : Amazon.fr: Sports et Loisirs
What derailleur for an 8 speed 11-40t cassette? | Mountain Bike Reviews Forum
Cassette, Shimano 8 speed wide range – Rivendell Bicycle Works
Kit de changement de vitesse et dérailleur arrière pour vtt, 8, 9, 10, 11 vitesses, pour Cassette 52T - AliExpress
Can You Use a 10-speed Derailleur On a 9-speed Cassette? – Brainy Biker
10 spd clutch derailleur conversion for 9 spd - Pinkbike Forum
Hands On Bike: United Trifold: Saint Rear Derailleur and 10 Speed Cassette
microSHIFT Acolyte 8-Speed Rear Derailleur with SpringLock | REI Co-op
MTB Rear Derailleurs | microSHIFT
shimano - Can we use a 9 speed rear derailleur on a 8 speed bike? - Bicycles Stack Exchange
Using 8 Speed Chain With A 10 Speed RD - Bike Forums
Can I Use A 9-Speed Derailleur With An 8-Speed Cassette? | BikeRenovate
SunRace 8/9/10/11 Speed 11-40/42/46/50T MTB Cassette Bike Derailleur fit SHIMANO | eBay