e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black Model Name-PS 1.0 Saddle Includes special compound brake pads

Includes special compound brake pads for optimal braking on both wet and dry surfaces

Length x width: 262mm x 150mm

Stroke (mm) 55 Metric Yes Lockout Switch Climb Switch Weight 385 Eyelet Diameter (mm) Trunnion Eyelet Diameter (mm) 12

Primary Color Black Wheel Diameter 20 Frame Size 20

The wind-resistant front protects you in challenging weather conditions

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black Model Name-PS 1.0 Saddle Includes special compound brake padsThe 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