Perfectly suited to the increasingly popular all-mountain segment, the AMg shares the freshly updated "TR" upper guide with the 1x, & adds MRP's patented integrated skid. The All-Mountain Guide is a great choice for 5-6" travel bikes when used with the latest tensioned rear derailleurs or on its own for shorter-travel trail bikes or hardtails that require bash protection. The contact-free, upper-only chain retention means the All-Mountain Guide will be virtually silent & completely drag-free when pedalling. The patented integrated skid will protect your crank & chainring & prevent the chain from ever contacting & potentially damaging your expensive frame.