e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black CheckoutSpec=P-Unlk Length 85 Color Black Flange

Length 85 Color Black Flange No Lock On Yes Grip Shift Specific Yes Defined Color Black Shape Round

With their lightweight breathable construction and comfortable mid-top design they are perfect for an adrenaline-filled ride

Magnetic head with twisting collar to keep out dirt and debris

with 64mm bar clamp width

Large carrying capacity with collapsible inside space divider

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black CheckoutSpec=P-Unlk Length 85 Color Black FlangeThe e*thirteen Helix Race 107 BCD Chainring designed for 4 bolt 107 BCD cranks like SRAM Red or Force including power meter equipped cranks offers a performance upgrade for Gravel and Road cyclists. The 38 40 and 42 tooth rings pair perfectly with e*thirteens cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy they're CNC sculpted for a high stiffness to weight ratio. Compatible with both SRAM and Shimano 11