Forget wheel size debates, the 2017 Pivot Mach 429 Trail blurs lines just as much as it blurs the scenery. With 116mm of rear travel, short chainstays, and a slack head angle, the 429 Trail takes to technical descents like a true trail bike should. Hollow core, internal, high compression carbon molding and all the obsessive detailing you expect from Pivot, combined with dw-link suspension controlled by Fox, offers incredible pedaling efficiency and small bump compliance in a fast, flickable, and energy efficient ride.