Product details:

Featuring the proprietary mud clearing Drop-Stop tooth design these rings are designed to fit any 104 BCD crankset. Made in Minneapolis MN with exceptional chain retention in mind these chainrings are best paired with a clutch-style rear derailleur. 10mm chainring bolts rmended. 48-49mm chainline depending on crankset. Drop-Stop chainrings are designed for use with 1x9 1x10 1x11 and 1x12 drivetrains. Compatible with all 10- 11- and 12-speed chains with the exception of Shimano 12-speed chains. Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings. If using a 9-speed drivetrain use a 10-speed chain which will provide a tighter fit for better chain retention. Use of a clutch-style rear derailleur is rmended. Made from 7075-T6 aluminum for long life.Drop-Stop chainrings are designed for use with 1x9, 1x10, 1x11 and 1x12 drivetrains
Compatible with all 10-, 11-, and 12-speed chains, with the exception of Shimano 12-speed chains
Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings
If using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit for better chain retention
Use of a clutch-style rear derailleur is recommended
Made from 7075-T6 aluminum for long life