E*THIRTEEN E*SPEC STEEL DIRECT MOUNT CHAINRING FOR BOSCH CX GEN4 has_product_type 1-Arm socket 31

1-Arm socket 31

Polyester 70%

Auto power saving: Yes

Boost spacing provides a wider bracing angle to increase wheel stiffness

Helmet holder

E*THIRTEEN E*SPEC STEEL DIRECT MOUNT CHAINRING FOR BOSCH CX GEN4 has_product_type 1-Arm socket 31Upgrade your e bike drivetrain with our Bosch e*spec Direct Mount Chainrings. Our M3 narrow wide tooth profile reduces weight without compromising on chain retention. While the steel version is a direct OEM replacement, the premium aluminum versions provide cleaner aesthetics, lighter weight, and long lasting performance perfect for when you're ready to upgrade from your original ring. Conquer your e bike trails at a great pricepower up your