Wolf Tooth SRAM Direct Mount Boost MTB Chain RingThe ideal chainring upgrade for the most aggressive mountain bike riders, Wolftooth has constructed this tough and efficient drivetrain component from 7075-T6 aluminium. Precisely machined with a patented narrow-wide tooth design, this boost-bike specific model is perfect for use with 1x12-speed gears and offers you excellent chain retention over the roughest trails.Wolftooth Drop-Stop technologyWolf Tooth has also equipped this version with its game-changing Drop-Stop technology, which keeps your chain securely in place and dislodges mud, dirt and excess water more efficiently. Features: Material: 7075-T6 Aluminium Mount: Direct mount Chainline: 52mm Offset: 3mm Made in the USA Designed for use with bikes with 148mm rear hub spacing Tooth Profile: Narrow-Wide, Woolftooth drop Stop A (optimised for mountain bikes) Part Numbers: Weight: 28T: 59g; 30T: 65g; 32T: 70gBuy Wolf Tooth Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.