MRP’s new 2x guide is designed to do four things, and four things only: prevent the chain from derailing from the underside of the chainrings; prevent the chain from falling inboard from the small ...

We’re not all tough enough to run a single chainring on our trail bikes, so in light of this MRP have designed a new chain guide for the current crop of two-ring, 10-speed mountain cranks. MRP say ...