Wolf Tooth Components Direct mount, Sram crank, Standard Chainrings

Engineered to be quiet and smooth
Legendary Wolf Tooth chain retention.
Prevents premature ring and chain wear that can come from non-optimized profiles.
Weights: 38t - 90g | 40t - 106g | 42t - 111g
Material: 7075-T6 aluminum
Made in the USA
Compatibility:
9, 10, 11, & 12spd Eagle, also work with 12 speed Eagle and 12 speed KMC chain.
They do not work with Shimano 12 speed Hyperglide+ chain or SRAM 12 speed Flattop chain