Originally Posted by Barrettscv

Hi

You should be able to run a 11-32 cassette with your 50, 39 & 30 triple if you use this derailleur;

https://bike.shimano.com/en-EU/produ...D-4601-GS.html

the 4601-GS is backwards compatible with 9 speed and has a generous practical cog size and chain wrap capacity.