Works Components - Fits SRAM N/W Chainring - 38T, 40T - Made in UK Upgrade your gravel setup with our SRAM 3-bolt round chainring - engineered to work with T-Type and Non T-Type 10-12spd chains. Specifications: Offset: SRAM 6mm Shape: Round Bolt Type: 3 Bolt Compatible Chains:T-Type and non T-type 10-12spd chains including Eagle 12spd and Shimano HG+.