DMR Blade 12 Speed MTB Boost Chain RingDeveloped for riders with Boost spaced mountain bike (MTB) set-ups, this chainring features a stiff 4mm wide 7075-T6 aluminium build for exceptional strength, durability and a superlight weight on your ride. Specifically designed for compatibility with any cranks using the SRAM Direct Mount (DM) interface, this model is a great choice of upgrade for smooth and reliable performance on your trail adventures. DMR has also ensured that this chainring is compatible with Shimano, KMC and SRAM 10, 11 and 12 speed chains for easy integration with your existing set-up. Boost MTB Chainring with Wide/Narrow Tooth DesignReady for hitting your local trails, this 12 speed chainring is kitted out with a Wide/Narrow tooth design for ultimate chain retention and when combined with a clutch mech, no chain device is needed. As a result riders can save 100g on their spider, chainring and chainring bolts setup. With a 3mm offset and a range of tooth configuration options to choose from, the DMR Blade 12 Speed Boost Chain Ring offers dependable performance without adding any unnecessary weight. Features: Material: 4mm 7075-T6 Aluminium Use: MTB Bolt Circle Diameter (BCD): Direct Mount Speed: 12 speed Tooth Design: Wide/Narrow Offset: 3mm Boost specific chainring Crank Compatibility: Compatible with SRAM DM interface Chain Compatibility: Compatible with Shimano/KMC/SRAM 10, 11 and 12 speed chains Save 100g on your spider setup Weight: 30T: 63g; 32T: 67g; 34T: 74g and 36T: 85gBuy DMR Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.