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2018 Road Bike Buyer’s Guide

Pivot Mach 429 Trail 27.5+ X01 Eagle Complete Mountain Bike - 2018

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Item # PIV004O

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Item # PIV004O


Trail adventure awaits.

The 2018 Pivot Mach 429 Trail 27.5+ X01 Eagle Complete Mountain Bike pairs all the versatility we loved in the 2016 version and adds 27.5+ wheels for an even smoother, more confident ride. Kitted out with SRAM's X01 Eagle one-by 12-speed drivetrain, Shimano XT hydraulic brakes, FOX's trail suspension kit, and smooth rolling DT Swiss XM 551 hoops, this rig straddles the worlds of XC and all-mountain to bring big hit durability and blazing speed to any trail.

The 429 Trail's DW-Link suspension owes its capabilities to a handful of queues taken from the Mach 6 and Phoenix, teasing a virtual depth out of the 4.5in of travel that feels closer to a proper 5in trail bike. The canny cyclist may spot elements of Pivot's DH clevis and enduro lower linkage in this model, but the new upper linkage translates those big-hit designs to the traction-focused language of a trail bike. By bringing the 429SL's small-bump compliance and race-worthy trail-contact into conversation with the Mach 6's terrain-erasing capabilities, the 429 Trail defines the crossroads where XC speed meets fearless enduro aggression.

The frame itself begins life with Pivot's hollow-core internal molding process for uniform, controlled wall thicknesses and material distribution. This process virtually eliminates inconsistencies and resin pooling, increasing structural integrity while targeting areas for weight loss. The frame rises from the mold with a 67.5-degree head tube angle and relatively stubby chainstays, making it slack enough to challenge lines across rock gardens but nimble enough to pick its way through enduro-grade terrain—all while sticking climbs and roosting berms in the manner that made us fall in love with its immediate predecessor, the 429SL.

The wide PF92 bottom bracket anchors the stiff Boost axles, accommodating wider pivot placement for longer life in the suspension's bearings and a stiffer rear triangle. We suspect that the PF92/Boost 148 collaboration is also responsible for the room to slam the rear wheel up and shorten the chainstays, making for even more power-transferring efficiency and the nimbleness described above. The externally routed cables make for easy maintenance, which we like, and also lower the bar for entry by reducing the manufacturing cost, which we like even more.

  • A 27.5+ trail bike with versatile capabilities
  • 4.5in of responsive DW-Link suspension
  • Geometry sits on the slack side of moderate for bigger lines
  • Pivot's carbon construction targets weight and stiffness
  • Boost axles further increase stiffness for a snappy ride
  • One-by 12-speed drivetrain provides wide gear range

Tech Specs

Frame Material:
carbon fiber
Rear Shock:
Fox Float DPS Kashima
Rear Travel:
Fox 34 Factory Kashima
Front Travel:
Pivot Precision Sealed Bearing
SRAM X01 Eagle 12-speed
Rear Derailleur:
SRAM X01 Eagle
ISCG Tabs:
30t Race Face Aeffect SL
Bottom Bracket:
10 - 50t SRAM X01 Eagle 12-speed
Shimano XT M8000
Brake Type:
hydraulic disc
Phoenix Carbon Riser
Handlebar Width:
Phoenix Team Padloc
35mm Phoenix Team Trail
Stem Length:
[small] 45mm, [medium, large, x-large] 65mm
Pivot WTB Vigo Race
[small, medium] 125mm FOX Transfer dropper, [large, x-large] 150mm FOX Transfer dropper
Seatpost Diameter:
Seat Collar:
DT Swiss M1700
Front Axle:
15 x 110mm Boost
Rear Axle:
12 x 148mm Boost
[front] Maxxis Rekon TR/3C/EXO/Maxxterra/Silkshield, 120 TPI; [rear] Maxxis Ikon TR/EXO
Tire Size:
27.5 x 2.8in
not included
Recommended Use:
Manufacturer Warranty:
10 years on frame

Geometry Chart


Geometry Chart


Mach 429 Trail

Seat Tube


Effective Top Tube






Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Height




S 16in 22.85in 23.91in 15.1in 28.54in 4in 67.5o 72.8o 13.19in 17.45in 43.7in
M 17.5in 23.9in 23.93in 16.11in 28.98in 4in 67.5o 72.8o 13.19in 17.45in 44.69in
L 19in 24.75in 24.59in 16.66in 29.29in 4.7in 67.5o 72.8o 13.19in 17.45in 45.47in
XL 20.5in 25.6in 25.71in 17.14in 30.04in 5.9in 67.5o 72.8o 13.19in 17.45in 46.46in

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