Increased chainlines allow some bike frames greater tire and chainstay clearance. The RaceFace Direct Mount Wide CINCH SHI12 chainring achieves your desired chainline while maintaining pedal-friendly crank ergonomics all without upgrading your spindle. Crafted from premium 7075 aluminum plate for stiffness and strength the RaceFace CINCH interface (compatible with all CINCH cranks) makes it easy to swap in different sizes to customize your SHI12 speed drivetrain. Designed for use with Shimano HG+ chains only.Optimal chainline and clearance for Super Boost (157mm) hubs with the standard RaceFace RF136 cranks spindle or a handy extra 3mm of chainline on Boost (148mm) hubsCrafted from premium 7075 aluminum plate for stiffness and strengthRaceFace CINCH interface (compatible with all CINCH cranks) makes it easy to swap in different sizesProvides a 55mm chainline with RF136 crank spindleFor use with Shimano HG+ chains only