The perfect 1x solution for your gravel, CX or road bike. Made from 7075 Aluminum, Wolf Tooth's patented Drop-Stop design helps clear mud while retaining your chain.Features Wolf Tooth's Drop-Stop tooth design for maximum chain retentionDrop-Stop chainrings are designed for use with 1x9, 1x10, 1x11 and 1x12 drivetrainsDrop-Stop FT is compatible with all 10-, 11-, and 12-speed chains (including SRAM Flattop 12-speed chains), with the exception of Shimano 12-speed chainsShimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainringsIf using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit for better chain retentionNot compatible with Shimano Asymmetric 110 BCD cranks or Campagnolo CX10/11 cranksUse of a clutch-style rear derailleur is recommendedMade from 7075-T6 aluminum for long life