E*thirteen Helix Race e*spec E-Bike Chainrings CR5HRA-124

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