Wolf Tooth 110 BCD Cyclocross B-Type Chainring Back on the Chainring Gang Wolf Tooth chainrings are made in the USA from 7075 aluminum and feature Wolf Tooth's signature Drop-Stop tooth design that is intended to resist chain drop when used with a 1x drivetrain. No more dropped chains and the pure simplicity of a 1x drivetrain is made possible with these well-built, reliable rings. Convert your current setup or simply upgrade your existing 1x ring, you won't be disappointed. 110 mm BCD chainrings to fit standard cranks with a 5-bolt pattern, and 110 mm BCD spiders. Does not fit Shimano DA 9000 / Ultegra 6800 cranksets. Features:110 BCDfits many common cyclocross and compact road cranksets Made in the USA from 7075 aluminum Drop-Stop tooth design for 1x drivetrains resists chain drop for a secure chain over rough terrain B-type is compatible with9, 10, & 11-speed chains, as well as 12-speed SRAM Eagle, Campagnolo, KMC, and SRAM Flattop AXS chains (not compatible with 12-speed Shimano HG+ chains)Claimed weight34t - 44g, 36t - 58g, 38t - 66g, 40t - 74g, 42t - 81g, 44t - 90g, 45t - 107g, 48t - 115g, 50t - 125g | Wolf Tooth Components | 110 Bcd Cyclocross & Road Drop Stop B Chainrings | Black | 34T | Aluminum