Easton Direct Mount Chainring The Easton Direct Mount CINCH SHI12 Gravel and Road 1x chainring brings 12-speed compatibility to the lightweight and versatile EC90 SL crankset. Via the simplicity of CINCH, riders can enjoy the expanded gear range and butter-smooth shifting of 12-speed, while conveniently swapping rings on their EC90 SL or EA90 cranks. The chainring is designed for use with Shimano 12-speed HG+ chains only. Features Optimized tooth profile offers excellent chain retention while minimizing drivetrain friction commonly experienced in 1x applications, no chain guide needed CNC shaping below the teeth improves mud clearance from the tooth-chain interface to prevent chain drop and wear Optimized for Shimano HG+ 12-speed chains and is compatible with Shimano 12-speed drivetrains SPECIFICATIONSMaterial Aluminum Weight90g | Easton | Direct Mount Chainring 40T | Aluminum