Joined: Jul 2015
Posts: 7,371
Likes: 3,218
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
MicroShift has no reason to Lie about their products.
they only work correctly with Acolyte shifters.
Get a Shimano Altus RD-M 310 instead.
under $15 from Walmart, among Thousands of other outlets.
i run one of these on a hardtail MTB i abuse frequently...
i call them my "problem solver derailleur"...it works great where other derailleurs won't.
and they work brilliantly with the SL-M310 or M315 shifters. I install many of them in that combo as upgrades to Formerly Shimano Tourney equipped low end MTBs.
not sure of your cassette, but i run a 12-36 cassette on the afore mentioned Hardtail.. and a triple on the front.
the cage is short, and the rollers are large... this allows them a generous "wrap" rating.. shimano says 34 t max cassette and 43 wrap... i push that to 36 max and 44 wrap easily.
the cassette won't know the difference, but an alternative is to get the acolyte shifter to match their proprietary derailleur...
Last edited by maddog34; 05-18-25 at 05:24 PM.