We weren't sure it was possible to improve on the much praised Mach 6 Carbon, but the Pivot engineers are determined to eke every possible benefit out of every frame in the Pivot stable. For 2016, we see a bit of influence from the downhill firebird Pheonix shining through in the Mach 6 to bring it in line with the trend towards bigger, slacker, DH influenced enduro rigs all while keeping its unique ability to climb like a much shorter travel bike. The 2016 Pivot Mach 6 Carbon XTSLX Complete Mountain Bike comes outfitted with a mix of Shimano XT and SLX componentry, a Boost rear axle, and a hunger for everything from race days to backcountry adventures. The frame updates are focused primarily in the rear triangle, where the Phoenix's influence is most apparent. The double wishbone rear triangle is clearly carrying some downhill DNA, and it's combined with an ambitious upper linkage design that's 40% wider and engages the frame with larger bearings. Pivot continues the oversized trend in the rear axle with a new Boost 148mm standard, ushering the Mach 6 into the modern era of enduro, where tech seems to always be straddling the lines between trail riding and gravity. The cumulative effect of these changes is a claimed 150% increase in rear triangle stiffness, meaning that though the new Mach 6 leaves a wide, DH footprint it still climbs more like a four inch XC bike. The DW Link suspension design controlling the Mach 6's six inches of travel also does its part to maintain a secure climbing hold on rocky trails. Its anti squat tendencies maintain a firm pedaling platform while cleaning terrain riddled cruxes or picking lines with abandon across trail furniture. That responsiveness is matched on the opposite end of travel with a square edge capacity that feels virtually bottomless, so time saved on the climbs isn't lost because of overly cautious descending. The bike's changes are finished off with updated internal routing to accommodate mechanical groups wi...