Your 2300 shifters are compatible with….
- any Shimano compatible 8 speed cassette.
- any Shimano SIS 6 speed to 10 speed (except 74XX and 4700) road rear derailleur.
- any Shimano SIS 6 speed to 9 speed mtb rear derailleur
- nearly all multi-gear 7, 8, 9 speed chains.
I set up a bike for our son with 2300 shifters, 6 speed SIS Deore rear derailleur, 8 speed 105 front derailleur, 7 speed (Shimano & Sunrace mix) cassette spaced to 8 speed, on a 10 speed 105 hub with 7 speed freehub body. I’m running a KMC x8.93 chain. No issues.
Don’t think you need a particular Shimano cassette, chain or rear derailleur to get it to shift well. “Almost” any Shimano with the correct actuation ratios/cable pull will play together.
John
Last edited by 70sSanO; 10-05-22 at 05:28 PM.