Check the listing for details. Hope R22 104 BCD MTB Chain RIng Chainring. Condition: New. Listed at 59.99 USD. Hope introduces the innovative R22 chainring series, boasting a host of advanced features. Compatible with all contemporary drivetrains, including SRAM Transmission, the redesigned tooth profile enhances self-cleaning in muddy environments and optimizes drive efficiency with minimal chain skew. The narrow-width profile provides superior chain guidance, while advancements in chain wear durability surpass previous models. Crafted in Barnoldswick from 7075-T6 aluminum, these chainrings are available in a spectrum of Hope's signature anodized colors. Available in 32, 34, 36 & 38T 104mm BCD 4 Bolt A new range of MTB chainrings from Hope which offer a new tooth profile compatible with all major drivetrain types along with updated spider designs. 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 Spiderless rings have a new leg design with improved strength and stiffness Machined from 7075-T6 aluminium