Chromag Sequence X-Sync Boost ChainringKnobby-loving folks everywhere can thank SRAM's X-Sync technology for their liberation from the front derailleur. The Chromag Sequence Chainring borrows that very same X-Sync technology (licensed by SRAM) to simplify your life with unparalleled single ring chain retention. As the only mountain bike company officially authorized to manufacture chainrings with SRAM's coveted X-Sync technology, the Sequence Ring provides the confidence knowing your chain will stay put through the rough stuff.Further proving it's no softy; the Sequence's chamfered mud-clearing recesses at the base of the teeth rapidly bail mud to optimize its routine in grimy conditions, while its tank-like CNC machined 7075 T6 aluminum construction has it willing and able to take the trail's punishment. We recommend you do yourself a favor and mount up a Sequence Ring by Chromag because less is more damn it!FeaturesOfficial SRAM X-SYNC technology. Complies with SRAM warranty standards for compatibility with all SRAM X-SYNC drivetrain.X-SYNC tall, square tooth design provides maximum chain control.Sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain and shed mud.CNC Machined from 7075 T6 aluminum for the best durability.Specifications7075-T6 aluminumAnodized Black with laser etchCNC machined in Whistler, BC.Compatibility NotesBoost ring works with SRAM X-Sync Boost 148 cranks. | Chromag Sequence X-Sync Boost Chainring Black, 30T, Direct Mount