Pivot Mach 5.7 Carbon frame review£2,099.00

Ultra-versatile chassis gets a carbon makeover

BikeRadar score4/5

Pivot’s ultra-versatile Mach 5.7 is now available in a carbon frame version to boost its all-rounder ability even further. A great ride and impressive weight make it an awesome bike.

Ride & handling: An absolute blast, whatever you’re asking it to do

Nudging towards 6in of travel (the Pivot has 145mm/5.7in) normally means a compromise between pedalling feel and acceleration response, but the Pivot drives remarkably well. In granny gear, stand up charges or churning through soft, deep gravel there was no obvious bounce or power loss, and there was just enough traction-enhancing pedal lift to claw us up the steeps or charge out of corners.

With a complete bike weight in Shimano XT based trail trim of 11.9kg (26.3lb), there’s little for gravity to grab hold of either. The Kashima coated Fox shock and DW-Link suspension design work superbly together – plush enough to keep the ride communicative without ever feeling dead or dull at any point in the stroke, and the Mach 5.7 not only handled every potential suspension-shaming situation, but also created skill-flattering speed out of every challenge.

The bottom bracket looks low on paper but the consistently crisp and pert ride height makes it less of an issue than you’d think on the trail, and it’s stable enough to slide the tyres sideways without worry. While the Mach 5.7 doesn’t let you pop its front wheel as easily as more rider-responsive suspension designs, compact sizing means it’s a great bike to move about on and use your bodyweight.

Top this blank-canvas ‘ride what you want, how you want’ character with an accurate, twist-free tapered front and screw-through axle rear, and the new Mach 5.7 is an absolute blast whatever you’re asking it to do. The scope to make it a lightweight trail bike or a longer travel skill stretcher makes it supremely versatile too.

Pivot mach 5.7 carbon frame: pivot mach 5.7 carbon frame
Pivot mach 5.7 carbon frame: pivot mach 5.7 carbon frame

Frame: Lightweight and stiff carbon chassis

At 2.36kg (5.2lb) with shock, frame-only weight is 200g less than the already lightweight alloy version. The Hollow Box high internal compression construction gives significant stiffness increases, and there’s minimal flex from the tapered head tube right through to the 142x12mm screw-axle rear.

The 92mm wide press-fit bottom bracket allows for better bearing support, and the dropper seatpost cable guides and post mount brakes make setup easy. Rubberised leather frame protectors on the rear stays and down tube reduce noise and chip damage, with a retrofit ISCG mount due to be available by next spring.   

The Pivot Carbon will come to the UK as a frame-only deal, but there are some bits worth commenting on here. For a start, while XT works great you could definitely save some weight by spending more or choosing SRAM. The 5.7 is begging for a wider handlebar than the relatively narrow FSA SLK too.

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This article was originally published in Mountain Biking UK magazine.

Guy Kesteven

Freelance Writer, UK
Guy started filling his brain with cycle stats and steaming up bike shop windows back in 1980. He worked the other side of those windows from '89 while getting a degree in “describing broken things covered in mud" (archaeology). Dug historical holes in the ground through the early '90s, then became a pro bike tester in '97. Guy has ridden thousands of bikes and even more components the world over since then and can remember them all in vivid, haunting detail. Can't remember where the car keys are, though.
  • Age: 45
  • Height: 180cm / 5' 11"
  • Weight: 68kg / 150lb
  • Waist: 76cm / 30in
  • Chest: 91cm / 36in
  • Discipline: Strict sadomasochist
  • Preferred Terrain: Technical off-piste singletrack and twisted back roads. Up, down, along — so long as it's faster than the last time he did it he's happy.
  • Current Bikes: An ever changing herd of test machines from Tri bikes to fat bikes and everything in between.
  • Dream Bike: His Nicolai Helius AM custom tandem
  • Beer of Choice: Theakston's Old Peculier (not Peculiar)
  • Location: Yorkshire, UK

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