Compatibility

The Ratio Mech came about not only as a way to improve shifting performance, but also as a way to mix and match different drivetrain options. The Mech will work with a wide range of different setups simply by using a different cable fin so, to help you get the right Mech, here’s a detailed dive into compatibility.

Please note the Mech is only compatible with 1x setups

Cassette	Drop-Bar Shifter // Fin	Flat Bar Shifter // Fin	Mounting	Cage
SRAM Transmission 12s (10-52)	SRAM Apex 12s // Fin G SRAM 10/11s + Ratio 1×12 Wide ratchet* // Fin C	SRAM Eagle 12s // Fin G SRAM T Type 12s // -coming soon-	T Hanger	Long
SRAM Eagle 12s (10-50, 10-52)	SRAM Apex 12s // Fin H SRAM 10/11s + Ratio 1×12 Wide ratchet* // Fin D	SRAM Eagle 12s // Fin H	Hanger	Long
SRAM XPLR 13s (10-46)	SRAM Apex 12s + Ratio 1×13 ratchet + Ratio Cable Spool* // Fin B SRAM 10/11s + Ratio 1×13 ratchet* // Fin B	None	T Hanger	Short
SRAM XPLR 12s (10-44)	SRAM Apex 12s // Fin A SRAM 10/11s + Ratio 1×12 Road ratchet* // Fin D	SRAM Eagle 12s // Fin A	Hanger	Short
SRAM AXS 12s (10-28, 10-33, 10-36)	SRAM Apex 12s // Fin A SRAM 10/11s + Ratio 1×12 Road ratchet* // Fin D	SRAM Eagle 12s // Fin A	Hanger	Short
SRAM 11s (10-42, 11-42)	SRAM 11s // Fin D	SRAM 11s // Fin H	Hanger	Short
Shimano 12s (10-51)	Shimano GRX 12s // Fin E	Shimano 12s // Fin F	Hanger	Long
Shimano 12s (9-45, 10-45)	Shimano GRX 12s // Fin E	Shimano 12s // Fin F	Hanger	Short
Shimano 11s (11-42, 11-50)	Shimano GRX 11s // -coming soon-	Shimano 11s // -coming soon-	Hanger	Short
Campagnolo Ekar 13s (9-36, 9-42, 10-44)	SRAM 10/11s + Ratio 1x13C ratchet* // None – jockeys currently incompatible Campagnolo Ekar 13s // None	None	Hanger	Short

*If you want to use 10/11 speed shifters with a 12 or 13 speed cassette, you’ll need to upgrade the ratchet in your shifter. Additionally, if you have a SRAM Apex 12 speed shifter you will need to install our Cable Spool too.