The Wolf Tooth 130BCD Chainring is a lightweight, durable 1x solution for gravel, cyclocross, or road bikes. Made from 7075-T6 aluminum, it features Wolf Tooths patented Drop-Stop tooth profile, designed to maximize chain retention and shed mud efficiently. Compatible with 1×9, 1×10, 1×11, and 1×12 drivetrains, the Drop-Stop FT tooth profile works with all 10, 11, and 12-speed chains including SRAM Flattop 12-speed. It is not compatible with Shimano 12-speed, which requires a Wolf Tooth Shimano-specific ring. For 9-speed drivetrains, a 10-speed chain is recommended for better retention. Not compatible with Shimano Asymmetric 110 BCD or Campagnolo CX10/11 cranks.