Narrow wide chainrings have revolutionized the 1x11 drivetrain. It is a great solution for keeping your chain from jumping off the crank, but it isn't full proof. Under certain circumstances you could still get your chain to jump off, especially when the chaining has worn a little bit.
The MRP 1X V3 CX chainguide will ensure that your chain doesn't jump off again. This CX version is specifically designed to handle larger rings of CX bikes and features a new carbon clamp to fit 34.9 and 31.6 seat tubes, but can be shimmed down to 28.6 with included shims. Tracked and grooved upper guide / backplate interface increases stiffness and eases installation, and the new co-molded "TR" upper guide with softer durometer interior provides silent guidence.
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