Hope 3 Bolt Direct Mount Chainring For SRAM MTBIf you're looking to upgrade your current chainring and want to add a splash of color to your bike, then you're in the right place. The Hope 3-Bolt Direct Mount Chainring is designed for SRAM MTB cranks and has a new tooth profile for compatibility with all major drivetrain systems. It is machined from 7075-T6 aluminum and has a new leg design with improved strength and stiffness. The tooth profile allows for more chain wear before function is compromised, extending service life. Features Asymmetric tooth profile engineered for cross-compatibility and functionality with different drivetrain systems9, 10, 11, and 12-speed compatible including SRAM T-Type Improved mud-shedding capability and improved chain retention Tooth profile allows for more chain wear before function is compromised SPECIFICATIONSDrive Train Speed9, 10, 11, 12-Speed Tooth Count28, 30, 32, 34, 36TMaterial7075-T6 Aluminum Direct Mount Type SRAM 3-Bolt Chainline-Offset3mm Intended Use Mountain Weight N/AChainline/Chainring Offset Guidelines Rear Spacing135mm / 142mm148mm Boost Super Boost 150mm / 157mm Fat Bike (170mm, 190mm, 200mm)Chainline48 - 50mm51 - 53mm54 - 56mm56mm+Chainring Offset~6mm~3mm~0mm~+2mm | Hope Technology | 3 Bolt Direct Mount Chainring | Orange | 32T | Aluminum