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Item # PIV0011

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Item # PIV0011

The Pivot Mach 429/Shimano XT/SLX Complete Bike has a 100mm (4") dw-link rear suspension, and its big wheels make it versatile enough to function as a race bike or a backwoods adventurer. Any day, any trail. That's the way we see it.

The Mach 429 is a super-efficient race machine because it pedals well without inducing strange or wasted motion in the rear suspension. At the same time, it has deceptively plush travel that just makes it a fun bike to ride. Though these characteristics might seem to be mutually exclusive, the dw-link suspension makes it all possible because of its anti-squat characteristics. By virtue of Newton's Third Law of Motion, when something accelerates, its mass is transferred rearward. The dw-link counteracts this transfer to minimize your impact on the rear suspension. This is why Pivot is able to get such a lightly damped tune on the 7. 5" x 2.0" Kashima Coated RP23 rear shock from Fox. With the dw-link controlling unwanted suspension squat, the lightly damped shock can respond with ultra-sensitivity to the demands of the trail. As a result, the Mach 429 delivers a comfortable ride and awesome climbing traction. It floats over rocks, roots and ruts, yet it still remains firm while hammering out of the saddle. In short, the Mach 429 adapts to virtually any situation you throw it in.

While many 29ers are too flexy, Pivot made it a point to improve this aspect of the frame. Pivot builds the Mach 429 frame from hydroformed 6000 series aluminum tubing and 3D hollow aluminum forgings. The production processes for these raw materials both help to align and strengthen the grain structure of the alloy. Compared to the Mach 4, the tubes in the front triangle are bigger around, though also shaped differently, to add torsional stiffness. The rear triangle also gets a new structure. It does without a brake bridge on the seat stays, and it gets a vertical strut on both sides between the links. This gives the Mach 429 the same kind of stability and precision as the 26" bike.

There are a few other details that emphasize the efforts towards optimizing frame stiffness. One of the easiest to see is the BB92 pressfit style bottom bracket. The extra width in the shell does two things -- 1) It allows the frame designers to spread the forged lower seat tube yoke and increase the width of the lower dw-link, increasing stiffness and resistance to torsional flex in the link. All this comes without sacrificing front derailleur functionality. 2) It also provides better support for the bottom bracket bearings. Speaking of sealed cartridge bearings, the forged and CNC machined aluminum lower link contains eight of them -- two at each corner. This increases the durability of this workhorse component, stretches service life, and optimizes suspension function. The upper link is made of carbon fiber for strength and light weight, and since it sees less stress than its lower counterpart, Pivot relies on four bearings here to do the job of keeping the suspension operating smoothly.

We have it here with parts from Shimano's XT and SLX groups. SLX gets the nod for the cranks, shifters, and front derailleur, and an XT rear derailleur handles shifting duties out back. You'll get rolling on Sun Ringlé Charger Comp wheels and Kenda Slant 6/Nevegal tires, and Magura MT2 brakes get you stopped. FSA supplies the Comet Alloy Handlebar, OS-150 Stem, and XC225 Seatpost. Phoenix Lock-on Grips and a WTB Rocket V Sport Saddle top it all off.

The Pivot Mach 429/Shimano XT/SLX Complete Bike is available in anodized Black or Blue. It comes in four sizes from Small to X-Large.

Geometry chart

Pivot Cycles

 

Geometry Chart

 

Mach 429
100mm Travel Fork
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

(SO)

Head Tube Length

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Height

(BBH)

Chainstay

(CS)

Wheelbase
S 17.0in 23.0in 23.4in 15.7in 29.25in 3.9in 70.0o 72.8o 12.8in 17.95in 43.5in
M 18.5in 24.0in 23.6in 16.7in 29.5in 4.0in 70.2o 72.8o 12.8in 17.95in 44.4in
L 20.0in 24.75in 24.4in 17.2in 30.25in 4.75in 70.6o 72.8o 12.8in 17.95in 45.0in
XL 22.0in 25.75in 25.6in 17.8in 31.0in 6.0in 70.9o 72.8o 12.8in 17.95in 45.9in
120mm Travel Fork
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

(SO)

Head Tube Length

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Height

(BBH)

Chainstay

(CS)

Wheelbase
S 17.0in 23.0in 23.7in 15.4in 29.6in 3.9in 69.0o 71.8o 13.1in 17.95in 43.8in
M 18.5in 24.0in 23.9in 16.3in 29.8in 4.0in 69.2o 71.8o 13.1in 17.95in 44.7in
L 20.0in 24.75in 24.6in 16.8in 30.6in 4.75in 69.6o 71.8o 13.1in 17.95in 45.3in
XL 22.0in 25.75in 25.7in 17.4in 31.3in 6.0in 69.9o 71.8o 13.1in 17.95in 46.2in

Pivot Mach 429 Geometry Chart

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