E*thirteen Helix R e*spec C-ring Bosch SX/Gen4 CX 34t -Black

Direct Mount chainring for a variety of E-Bike fitment- Updated M3 narrow-wide tooth profile eliminates chain noise, and decreases overall system wear while retaining chain- An alloy outer dust cover helps to prevent contamination- 11/12 speed. Compatible with both Shimano and SRAM 12 speed drivetrains- 53mm chainline to support dropping a chinring size to take advantage of e*thirteen 9t cassette cog