"Wolf Tooth Components" is a group of hardcore cyclists based in Minneapolis who create unique cycling components. All items are designed independently and produced in the United States.
The Drop Stop Chainring, which is a combination of thick and thin teeth that makes it difficult for the chain to fall off, originated from cyclocross and is now an indispensable item for front singles.
The 104PCD ring was first released by Wolf Tooth and is the most common standard for MTB double and triple cranks. Wolf Tooth's patented drop stop tooth prevents the chain from falling. A bolt of 7 to 10 mm is required for a 30t ring, and a bolt for a single ring of ~ 6mm is required for a ring of 32t or more. 10S, 11S, 12S (including SRAM Eagle) chains can be used. If you use a 9S drivetrain, use a 10S chain.