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Pivot Mach 429SL Carbon XT/XTR Pro Complete Mountain Bike - 2017

Pivot Mach 429SL Carbon XT/XTR Pro Complete Mountain Bike - 2017
Sale $4,929.15$5,799.00 15% Off

Item # PIV0038

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  • Matte Black/Red, M ($4,929.15)
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Item # PIV0038


Booster rockets.

Just when you thought the Mach 429SL was as perfectly dialed as it could possibly be, the engineers at Pivot managed to make it even better. 2017 sees Pivot's flagship XC 29er back in action with the same much-loved geometry as its predecessor and the addition of a boost rear axle for even more stiffness out back. Those few extra millimeters only amplify the 429SL Carbon XT/XTR Pro Complete Mountain Bike's ability to scamper up steep climbs and shred along with much bigger travel sleds on the drops. Finished off with a mix of Shimano's XT and XTR componentry, this bike is roaring for you to zip tie on a number plate and toe the line. As an added bonus, boost spacing opens up clearance for 27.5+ wheels should you want to bump up the volume for off-season adventuring.

As with its predecessors, the Mach 429SL enjoys a svelte, race-worthy weight thanks to Pivot's proprietary hollow-core, internal-mandrel technology—the same process that was employed for the original 429 Carbon. Pivot did scrutinize the 429 layup, though, refining both the structure and the composite materials used. As a result of those efforts, the podium-hungry Mach 429SL Carbon is one of the lightest full-suspension frames Pivot has ever made, and it doesn't involve any sacrifices to stiffness or ride quality.

The Mach 429SL Carbon features a proven DW-link suspension design, which yields 100mm of smooth travel while also counteracting speed-robbing bob forces. This translates to consistent contact with the trail and snappy, responsive acceleration. Stand up and stomp on the pedals and you’ll be amazed at the grip you get on loose dirt. Pivot worked closely with FOX on the Float DPS Kashima Factory shock tune, so the 429SL's suspension and shock combine to provide travel that’s responsive, predictable, and uses every available millimeter. As with prior iterations of the Mach 429, you’ll feel like you’re riding a bike with much more travel.

Full-length internal cable routing—including internal routing for a dropper post—keeps everything tidy and quiet with sleek, clean lines. This frame can be paired with a 100mm fork for pure XC speed, but here it’s presented with a FOX 34 Factory 29in Kashima Boost fork for increased versatility and confidence on rough trails. The longer fork slackens the ride a bit, but with DW-link suspension in back, the Mach 429SL rides high in its travel, so you won’t experience any front-end wavering on climbs.

  • A versatile, race-bred XC 29er
  • 100mm of responsive DW Link suspension
  • Moderate geometry for XC speed and rowdy trail sessions
  • Pivot's carbon construction targets weight and stiffness
  • Boost axle widths increase stiffness for a snappy ride
  • Double chainring provides gearing for a wide range of terrain

Tech Specs

Frame Material:
carbon fiber
DW Link
Rear Shock:
Fox Float DPS Kashima
Rear Travel:
100 mm
Fox 34 Factory 29in Kashima
Front Travel:
120 mm
Pivot precision sealed bearing
Shimano XT M8000
Front Derailleur:
Rear Derailleur:
Shimano XTR M9000 GS
30 t Race Face Aeffect SL
Bottom Bracket:
PressFit 92
11 - 46 t Shimano XT M8000
Shimano XT M8000
Brake Type:
hydraulic disc
Phoenix Carbon Riser
Handlebar Width:
740 mm
Phoenix lock-on
Phoenix Team
Pivot WTB Volt Race
Phoenix Race Carbon
DT Spline-Two M1700
Front Axle:
15 x 110m Boost
Rear Axle:
12 x 148mm Boost
Maxxis Ardent Race TR
Tire Size:
29 x 2.2 in
not included
Recommended Use:
cross country
Manufacturer Warranty:
3 years on frame

Geometry Chart

Pivot Cycles

Geometry Chart


Pivot Mach 429 SL Carbon
120mm Travel Fork

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Height




S 17in 23in 24in 15.2in 28in 4in 69.30 71.90 13in 17.7in 43.2in
M 18.5in 24in 24in 16.3in 29.6in 4in 69.30 71.90 13in 17.7in 44.2in
L 20in 24.75in 24.7in 16.8in 29.6in 4.7in 69.30 71.90 13in 17.7in 45in
XL 22in 25.6in 25.8in 17.3in 30.8in 5.9in 69.30 71.90 13in 17.7in 45.9in

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Looking at the Pivot 429SL with XT/XTR and the next level up XO eagle. Why is the frame different in the pictures? It has an extra extension from top tube to seat vs. the other color which has no extra extension.

Hey Rick,

The pictured bikes are different sizes, which explains the design difference.