The Specialzied Rev4 Mech Hanger 28T Long is Compatibile with cassettes 28T and bigger. Compatibile with cassettes 28T and bigger. Specialzied Rev4 Mech Hanger 28T Long Features This item is used on the following models: Model Year Category Model 2018 ALLEZ ALLEZ SPRINT COMP 2018 ALLEZ ALLEZ SPRINT FRMSET 2018 ALLEZ ALLEZ SPRINT FRMSET RED HOOK 2018 ALLEZ ALLEZ SPRINT FRMSET SAGAN SUPERSTAR 2018 CRUX CRUX E5 2018 CRUX CRUX E5 SPORT 2017 ALLEZ ALLEZ DSW SL SPRINT COMP 2017 ALLEZ ALLEZ DSW SL SPRINT ELITE 2017 ALLEZ ALLEZ DSW SL SPRINT EXPERT 2017 ALLEZ ALLEZ DSW SL SPRINT FRMSET LTD I 2017 ALLEZ ALLEZ DSW SL SPRINT FRMSET LTD II 2017 ALLEZ ALLEZ DSW SL SPRINT FRMSET LTD III 2017 ALLEZ ALLEZ E5 2017 ALLEZ ALLEZ E5 ELITE 2017 ALLEZ ALLEZ E5 ELITE SAGAN WC REPLICA 2017 ALLEZ ALLEZ E5 SPORT 2017 ALLEZ ALLEZ JR. 2017 AMIRA AMIRA BASE 2017 AMIRA AMIRA COMP 2017 AMIRA AMIRA COMP TORCH 2017 AMIRA AMIRA COMP UDI2 2017 AMIRA AMIRA EXPERT UDI2 2017 AMIRA AMIRA SPORT 2017 AMIRA AMIRA SW ETAP 2017 AMIRA AMIRA SW FRMSET 2017 AMIRA AMIRA SW FRMSET TORCH 2017 ROUBAIX ROUBAIX SL4 COMP UDI2 RIM 2017 ROUBAIX ROUBAIX SL4 RIM 2017 ROUBAIX ROUBAIX SL4 SPORT RIM 2017 RUBY