Chromag Sequence Direct Mount Boost Chain RingChromag’s Sequence DM Boost Chainring uses officially licensed SRAM X-SYNC technology for unmatched chain retention. Chromag are the only MTB Company who has the official authorisation to make chainrings using X-SYNC technology.Regardless of the kind of MTB bike you possess, you can rest assured your chain will stay put, enabling you to give the bike a little extra flair with timeless Chromag styling.Features:Material: CNC Machined 7075-T6 aluminiumOfficial SRAM X-SYNC technology. Complies with SRAM warranty standards for compatibility with all SRAM X-SYNC drivetrainsChamfered mud-clearing recesses at the base of the teeth provide the best possible performance in muddy conditionsAnodised black with laser etchTechnologies:X-SYNC: SRAM X-SYNC chain rings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, helps manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chain rings have been designed with mud-clearing recesses for the inner chain links and rollers.Buy Chromag Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.