The DMR Blade chainring is now 10, 11 and 12 speed compatible. The DMR Blade mtb chainring has a Wide/Narrow tooth design for ultimate chain retention and when combined with a clutch mech, no chain device is needed. This DMR chainring is manufactured from stiff 4mm wide 7075-T6 Aluminium maintaining direct power transfer. Features Superlight: 30T- 63g | 32T- 67g | 34T- 74g | 36T- 85g.. Save 100g on your spider, chainring and chainring bolts setup.. DMR Blade chainring is compatible with any cranks using the SRAM DM interface.. Wide/Narrow tooth design for maximum chain retention.. Specification Stiff 4mm wide 7075-T6 Aluminium.. This direct mount chainring is compatible with SRAM DM interface.. Fits Shimano/KMC/SRAM 10, 11 and 12 speed chains.. 6mm offset for standard rings, 3mm offset for Boost..