Ensuring your chain stays firm & focused over the most challenging of Enduro, Gravity & Downhill routes, this MRP guide is compatible with single ring 1x 7/8/9/10 & 11-speed drivetrains & features a nylon upper guide with co-moulded TPU material which silences chain contact for a smooth & steady motion. Compatible with a 50mm chainline, this bottom bracket mounting guide will work with traditional threaded BB systems & will protect all chainrings within the size range of 32-36T with an integrated skid plate for a complete & confidence instilling experience.