Ethirteen Helix R espec C-ring Bosch SX/Gen4 CX 34t -Black

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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

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