e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t, 11/12-Speed, 107BCD, Black stinner-frameworks All natural sports gel

All natural sports gel

Item Specifications Color Black/Tan Defined Color Black Flat Protection Tread and Sidewall ISO Diameter 584 / 650b / 27

Replacement battery for front or rear derailleur

automatically switching to the optimal flash tempo

Breathable upper fabric keeps hands cool and dry

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t, 11/12-Speed, 107BCD, Black stinner-frameworks All natural sports gelThe 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*thirteen's 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