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2018 Pivot Mach 5.5 Carbon Pro X01 Eagle Reynolds Complete Mountain Bike


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2018 Pivot Mach 5.5 Carbon Pro X01 Eagle Reynolds Complete Mountain Bike


Building on the legacy of Pivot’s iconic Mach 5.7 Carbon, the Mach 5.5 Carbon Pro X01 Eagle Reynolds Complete Mountain Bike pushes the design envelope with progressive geometry that’s longer, slacker, and lower than ever. It handles everything the trail throws your way, from chunky, rock-littered climbs to blistering descents with square-edge hits, sudden drops, and rock rolls just begging for action. Pivot places it firmly into the trail category, with a secondary focus on all-mountain exploration. To be blunt, we just call it “damn capable” and “stupid fun,” making it a worthy rig for the aggressive rider demanding their bike to climb like a goat and descend with unflappable composure.

The Mach 5.5 Carbon retains the sought-after benefits of the DW-Link suspension platform, namely the ability to claw up the steepest, chunkiest climbs and soak up square-edge hits on the descent. Once you’ve reached the summit after a grueling climb, 5.5 inches of rear travel gobbles up loose rocks and smooths out square-edges at high speeds. It’s all party up front, with 6 inches of travel providing the confidence to rally across anything in sight, including sections usually reserved for longer-travel rigs. This 20-millimeter disparity between front and rear travel gives you a bit more efficiency for pedaling, but with extra plushness up front for cleaning notoriously technical sections of trail.

Seeing the industry is constantly evolving, it makes perfect sense to see the Mach 5.5 Carbon with a slacker, longer, and lower geometry for riders seeking a progressive trail bike that stays glued to the trail and retains stability at high speeds. The 66.5-degree head tube angle offers composure on high-speed descents, without being overly slack or wandering excessively on sustained climbs with steep, punchy sections. Just a tick shorter in the front than the notoriously long and slack Firebird, the Mach 5.5 Carbon’s long top tube gives you ample cockpit room, which is especially welcome if you have a longer reach. This longer front end is complemented with snappy-short 16.93-inch chainstays. Shorter chainstays provide greater maneuverability for cleaning tight corners and uphill sections, as well as lifting the front up and over trail obstacles.

A few key details make the Mach 5.5 Carbon a truly stand-out trail bike. Delving into its carbon frame construction, Pivot employs their proprietary hollow core internal molding process with an optimized lay-up of high-modulus carbon for the lightest weight possible. This method produces a feathery-light frame (claimed as low as 5.7lb) that approaches Mach 429 SL Carbon territory, but with strength and stiffness similar to the enduro-bred Mach 6. In the rear triangle, both the seat and chainstays clear tires of 2.6 inches, which is a nice benefit for riders seeking the added bump compliance and cornering grip of high volume trail tires.

Key details in component spec make the Mach 5.5 Carbon Pro XO1 Eagle with Reynolds Wheels a truly stand-out trail bike. Notably, the crisp-shifting XO1 Eagle drivetrain features a wide range of usable gears, complete with a massive 50-tooth bail-out cog for spinning up the steepest of climbs. This build is upgraded with Reynolds Carbon Wheels, which are renowned for their stiffness, strength, and quick acceleration. This Reynolds Carbon Wheelset features a 36-millimeter width for optimal support of the wider 2.6-inch trail tires provided on this build, as well as Industry Nine hubs with a responsive 3-degree engagement for powering up and over trail obstacles.


  • Pivot’s new breed of quintessential trail bike
  • 5.5in of bump-gobbling, edge-smoothing DW-Link travel
  • 6in travel up front for conquering rugged descents
  • Progressive trail geometry is longer, lower, slacker
  • High-modulus carbon frame is lightweight and stiff
  • Clears 2.6in Wide Trail tires for impressive traction
  • XO1 Eagle 12-speed drivetrain with 50t bail-out cog
  • Reynolds Carbon wheelset is stiff, strong, and light


2018 Pivot Mach 5.5 Carbon Pro X01 Eagle Reynolds Complete Mountain Bike


Frame Material:

carbon fiber



Rear Shock:

FOX Float Factory DPS EVOL

Rear Travel:



FOX 36 Factory

Front Travel:



Pivot Precision Sealed Cartridge


XO1 Eagle 12-speed

Front Derailleur:


Rear Derailleur:

XO1 Eagle 12-speed

ISCG Tabs:

yes, ISCG-05 tabs


XO1 Eagle (30t)

Bottom Bracket:


Crank Arm Length:



XO1 Eagle 12-speed (10-50t)


XT M8000

Brake Type:

hydraulic disc


Pivot Phoenix Team Carbon 35mm

Handlebar Width:



Pivot Phoenix Team Padloc


Pivot Phoenix Team Enduro/Trail


Phoenix WTB Vigo Pro


[XS] LEV Integra, [S,M/L,XL] FOX Transfer 125/150mm


Reynolds Carbon (36mm)


Industry Nine Torch

Front Axle:

15 x 110mm BOOST

Rear Axle:

12 x 148mm BOOST


[front] Maxxis Minion DHF Wide Trail, [rear] Maxxis Rekon Wide Trail

Tire Size:

27.5 x 2.6in

Recommended Use:

trail, enduro

Manufacturer Warranty:

3 years

Actual Weight:

Black/Blue Accents, M: 12620g



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