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Pivot Mach 5.5 Carbon Factory Float X2 Mountain Bike Frame - 2019

Temporarily Out Of Stock

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A wild steed to tame.

If we were to try to summarize the 2018 Pivot Mach 5.5 Carbon Mountain Bike Frame with Factory Float X2 shock, we'd say it's little bit free-form, a little wild, and a whole lot of fun. It finds its playfulness by pushing the design envelope with progressive geometry that's longer, slacker, and lower than ever. It handles everything the trail throws your way, from chunky, blistering climbs, to long and wily descents, littered with rocks and square-edge hits, sudden drops, and rock rolls just begging for action. Pivot places it firmly into the enduro 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 slack head tube and surprisingly deep-feeling travel reward aggression in chunky stuff, but our favorite part of the bike may be the rear triangle. Or rather, it's what's happening between the rear and front triangles; DW-Link may never have shined brighter than on the Mach 5.5. It combines the same pivot cartridge bearing featured on models like the Phoenix, but it ditches the clevis altogether. That makes for less weight, a tighter back end, and a light-off-the-top feel that stays glued to the trail—a trait only enhanced by the addition of mid-plus tires and a steep seat tube. This plush feel is combined with an upgraded Fox Float X2 rear shock, which features Evol technology, increasing sensitivity of the shock when you're pedaling over small roots and rocks for a smoother feel, without compromising on the get-up and go when you're putting down the power. We expect a bike with such a long cockpit and a 66.5-degree head tube angle to leave us stoked on descents, but the traction on loose and rocky climbs from the suspension and tire clearance mean that it makes us just as happy while earning our laps.

  • An enduro rig that rallies up climbs and charges down steeps
  • 5.5in of DW-Link suspension with light-off-the-top DH pedigree
  • Upgraded Float X2 shock increases sensitivity with EVOL technology
  • Removable front derailleur mount tidies up a one-by
  • Longer, lower geometry than the Mach 6
  • Steep seat tube and stubby stays keep climbing on point
  • Boost spacing stiffens the rear wheel and allows truncated stays
  • Pivot's carbon expertise protected by rubber frame guards
  • Clears 2.6in tires and a full-sized water bottle in the front triangle
  • Item #PIV004N

Frame Material
carbon fiber
Suspension
DW-link
Wheel Size
27.5in
Rear Shock
Fox Float X2
Rear Travel
140mm
Fork Travel
[recommended] 160mm
Head Tube Diameter
zero-stack 44/56mm
Headset Included
no
Bottom Bracket Type
PF92
ISCG Tabs
ISCG-05
Cable Routing
internal, mechanical, Di2
Front Derailleur Mount
removable
Brake Type
disc
Seatpost Diameter
30.9mm
Seat Collar
34.9mm
Rear Axle
12 x 148mm Boost
Claimed Weight
[frame and shock] 5lb 3.2oz
Recommended Use
enduro, trail
Manufacturer Warranty
10 years

Tech Specs

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