Originally Posted by Maelstrom
I have used a 9 spd shifter on 8 spd cassette/deraileur. The p2 my cousin got came stock with 9 spd shifter/deraileur and 8 spd cassette
So could you use a 9 spd rear derailleur with 8 spd shifters and an 8 spd cassette? My entire rig is 8 spd right now, but I'll need a new rear derailleur soon and would prefer not upgrading my shifters and cassette when the time comes.