e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black CheckoutTitle=Quality Wheels Bear Pawls / Velocity Aileron Rear Wheel - 700c 5 Wall Dbl Side MSW

5 Wall Dbl Side MSW Color Black Hole Count 36 Valve PV Weight 450g ERD 601 Extras

Tooth Count 42 Ring Position/Type Outer Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 8 Drivetrain Speeds 9 Chainring BCD 104 Color Black Defined Color Black Material Steel keyword search 11

Innovative tread pattern allows you to find traction and cornering no matter the soil conditions

(mm) 41 Manufacturer Number BB86-30MM Bearing O

With UltraTrac mode

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black CheckoutTitle=Quality Wheels Bear Pawls / Velocity Aileron Rear Wheel - 700c 5 Wall Dbl Side MSWThe 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