The Hope R22 Spiderless Boost Chainring offers a new tooth profile compatible with all major drivetrain types along with updated spider designs.Hope R22 Spiderless Boost Chainring Highlights-Available in 28, 30, 32, 34 & 36T.Hope Direct Mount BOOST Offset (52 mm or 55 mm chainline withHope wide axle crank)Compatible with 9/10/11 and 12Spd drivetrains including SRAM T-Type and Shimano HG+Asymmetric tooth profile engineered for cross compatibility and functionality with different drivetrain systems.Improved mud shedding capability.Improved chain retention.Better performance with extreme chain angles on modern 1 x drivetrains.Tooth profile allows for more chain wear before function is compromised, extending service life ... More info