e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black Color-Matte Black Modular skid saves 40g when

Modular skid saves 40g when removed

Installation requires 20-tooth Park or Shimano style bottom bracket tool

Say hello to the world’s fastest race lube – Ludicrous AF

Description Bearing Assy Install/Removal Tool Compatibility Internal Mounting Hardware

Up to 60 hr runtime in Eco-Flash mode

e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11/12-Speed 107BCD Black Color-Matte Black Modular skid saves 40g whenThe 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