2019 Pivot Mach 4 Carbon 27.5″ Race XT


The Mach 4 Carbon is the ultimate lightweight, flickable trail bike. Let’s start with the weight—or lack of it. The Mach 4 Carbon’s frame weighs a mere 5.1 pounds (2.3kg). Complete bikes tip the scales at less than 22 pounds (10kg). In other words, it’s a featherweight; it got that way thanks to both our proprietary hollow-core, internal molding process and a combination of highly optimized layup structures, tube sections, and material choices.

At Pivot, however, we don’t believe that “lightweight” should ever equal “flexy”. That’s why the new Mach 4 Carbon features a fully redesigned rear triangle that boosts stiffness and tire clearance. The confident handling of the Mach 4 Carbon also gets a boost from its mid-sized 27.5” wheels and flex-fighting Boost 148 rear hub spacing.

Out of Stock? Maybe not – give us a call to see if this product is available in store.



We recommend that you call our shop to discuss bike sizing and styles with the bike geeks at the shop. We have more to choose from then our website shows, and our bikes are available for purchase in our retail store. For the most accurate inventory and best advice, call 530-582-0909.

Mach 4 Carbon Serious Specifications

  • Full carbon frame featuring leading-edge carbon fiber materials and Pivot’s proprietary hollow-core, internal molding technology
  • Frame weight from 5.1lbs (2.3Kg) – Complete bikes weighing sub-22lb (10kg)
  • 115mm of smooth-yet-efficient dw-link® suspension with race and trail tuning X-Small size features 100mm travel – See FAQ tab for more information
  • Available in either trail-oriented or XC racing-focused complete bike builds
  • Accommodates tires up to 27.5×2.6”
  • Fits riders between 4’11” to 6’3”
  • X-small size features more stand-over clearance than any 27.5″ suspension bike made
  • Hassle-free, full-length, internal cable routing – Di2 Compatible
  • 2 sets of bottle cage mounts
  • 10-year warranty

Mach 4 Carbon Race XT Specifications

  • FRAME: Mach 4 Carbon
  • REAR SHOCK: Fox Factory Float DPS
  • FORK: Fox Performance 34 27.5″, 44mm offset, GRIP – 130mm
  • HEADSET: Pivot Semi-Sealed Cartridge
  • REAR DER: Shimano XT GS 11-Speed
  • SHIFTER: Shimano SLX M7000 11-Speed
  • BRAKES: Shimano SLX M-7000
  • CRANKSET: Race Face Aeffect 30t – 170mm
  • HANDLEBAR: Phoenix Race Aluminum – 750mm
  • GRIPS: Phoenix Team Padloc – Red
  • STEM: Phoenix Team XC/Trail – 60mm
  • SEATPOST: KS LEV-Si 100mm
  • SADDLE: Phoenix WTB Race Volt
  • CASSETTE: Shimano SLX M-7000 11-46t
  • WHEELS: SUNringlé Charger Comp w/ SUNringlé SRC hub, 27mm – 27.5″
  • TIRES: Maxxis Ardent Race 27.5″ x 2.35″ TR, 3C, EXO, MAXXSPEED, 120 TPI
  • ROTOR: Shimano SLX RT66 6-Bolt – 160mm
  • CHAIN: Sram PC-1110 11-Speed

Additional information


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