2018 Mach 429 Trail Available — The 2018 version sees a number of small component tweaks that will likely improve a few aspects of this hard-working bike's performance.
We'd take the Mach 429 Trail for 30 miles on an aggressive xc trail. If you mostly ride flowy trails with a minimum of techy / big-hit descents and want to be able to hang with the xc crowd, this bike is a great pick. The 110mm Santa Cruz Tallboy 29er is a more comfortable climber however, and a livelier and more confident descender than the Mach 429 Trail. Both bikes accept 29 or 27.5+ tires.