Product DescriptionThe Pivot Mach 429 should be stamped -- High Speed Approved -- somewhere on its anodized aluminum tubes. While it looks like it could simply be the race-proven Mach 4, only revamped and optimized for 29" wheels, the truth is more complex. It was designed expressly for big wheels, and that meant a thorough reworking of the geometry that extended from tube lengths and angles to the actual layout and size of the links for the 100mm (4") dw-link rear suspension. But like its smaller-wheeled brethren, the Mach 429 is versatile enough to line up in your local expert class cross-country event or to simply carry you down an unseen singletrack faster and farther than ever before. 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 4 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 b
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Date Reviewed: November 27, 2013
Strengths: Very secure and planted. Excellent climber. Outstanding on medium sized square edge hits, rocks, and roots. I will never buy another bike that doesn't have DW link. Uses it's 100mm of travel very efficiently.
Weaknesses: Long chain stays and 29er wheels decrease the playfulness in some situations. Heavy rear end on my 2010, but it does have good tire clearance. Not crazy about the 2010 TALAS.
Date Reviewed: March 22, 2013
Strengths: Climbing, Descending, Handling, Frame stiffness.
Date Reviewed: November 19, 2012
Strengths: Everything, this bike is the most amazing mtb I have owned bar none.
Similar Products Used: Orbea occam, Giant Anthem, Ellsworth Truth.
Bike Setup: Sram XX gruipset Mavic crossmax wheelset and lots of Thomson extras.
Date Reviewed: September 20, 2012
Strengths: Very Efficient suspension, lighter than my Pivot Mach 5 with similar build, goes the distance
Weaknesses: Spendy, stock RP23 a bit fickle to set up for a lighter-weight rider, poor rear tire clearance
This bike has one design weakness: Very Poor rear tire clearance...which is typical for a Cocalis bike. Other than that, I love this bike. I am a previous Pivot owner and still have my 2009 Mach 5 and this 429 carves better than the Mach 5 and matches it very nearly on the descents...it climbs better in that the very first week I had my 429, I started cleaning climbs I've never cleaned before.....and it holds it's own on endurance types rides which figure heavily in my yearly schedule....I wish I had had this bike with me on the AZT300 this year! Making the transition from a 26'r to a 29r, I was worried about a loss of nimblness in the bike....to my surprise, this bike is more nimble than my Mach 5.
The initial limitations I found are directly related to the wheel size and were easy to overcome with a change in riding style. Changing my climbing style/tempo up a little bit elicited gains within a week or so. Descending took a bit getting used to since the reduction in travel on this bike from my Mach 5 was obvious...but I've quickly forgotten about it.
The only big and persistent limitation here I see is the very poor tire clearance which coincidentally, is probably what contributes to the great carvability of this bike. As a bikepacker, this will limit where/when I take this bike bikepacking....if I'm looking to get into any mud I will have to consider another bike. Lucky for me, I live in AZ and mud is a rarity....but still a concern.
As in my Mach 5, I found my light weight and the bikes RP23 are a funny combination....the bike is either too harsh or too wallowy. One thing I did on my Mach 5 was send it off to PUSH to get tweeked as per my preferred riding style/modus. I anticipate doing the same with this bike as well to remedy the problem. I don't really consider this a weakness of the bike per se since this is perhaps more an indication of my riding style and preference....so I'll leave it at that.
Similar Products Used: Pivot Mach 5 (3 years usage)
Bike Setup: XT/XTR setup (XTR crank, RD, FD, XT brakes), Time ATAC carbon/Ti pedals, the rest is stock and working great.
Date Reviewed: August 22, 2012
Strengths: Stiffness, incredible geometry for climbing ANYTHING, easy to manuever, rolls and rolls and rolls
Weaknesses: lack of clearance between rear wheel and bottom bracket of D-Link suspension could cause issues on a really muddy day.
It's an expensive bike (hence the 4 out of 5 chillis) even with the ridiculous deal I got on it (brand new for $3,500.00 versus $5,000 from CO shop or Speed Goat) but its many strengths and fun factor to ride made it a 5 out of 5 no brainer for the overall rating. Buy one. You'll love it!
Date Reviewed: August 11, 2012
Strengths: Stiff Frame, Rear travel great in both small rocks and medium drops. Stock components.
Weaknesses: Hard to find in stock.
Duration Product Used: 9 months
Purchased At: South Mtn Cycles
Similar Products Used: 2011 Stumpjumper FSR Expert 29er (1year), 2012 Santa Cruz Tallboy (a couple of months)
Bike Setup: 2012 XT/XTR Pro kit. DT Swiss 350/XR400 rims tubeless with Specialized Captain F&R.
Date Reviewed: May 28, 2012
Strengths: Climbs effortlessly, descends better than my Gian Reign, Rolls through single track and holds it's line fantastically
Weaknesses: Lack of Dealers in Wellington, Price vs Carbon
Price Paid: $6200.00
Purchased At: Direct from Distribu
Similar Products Used: Specialized Stumpy, Jamis Dakar 26, Not so similar Giant Reign
Bike Setup: Shimano XT
Date Reviewed: May 16, 2012
Strengths: A versatile, well balanced MTB that holds its own in both AM/XC categories. DW-link nearly eliminates pedal-induced feedback (suspension bob) better than advertised and thus, this MTB climbs better than any other bike I have ridden over the past 25 years. Yet, the suspension behaves very well in the rutty, rocky type technical descents. The geometry is spot on so despite the bigger 29-inch wheels, its an excellent handling bike. IMHO, the 120mm fork improved an already great ride characteristic.
Weaknesses: Just a few nuances that I would propose Chris consider in the next version. My biggest issue has been inadequate rear tire clearance. Getting caught in a monsoon inevitably leads to carrying the bike out because of mud clogging betwen rear wheel and rear suspension. I recognize it is difficult to squeeze in the linkages and front derailler while maintaining the correct frame geometry etc but this issue has been problematic for me. ONly other improvement I would suggest.... which we know is coming (as evident by the upgraded 5.7) will be to enhance the rear travel slightly (4.7-inches?) while lightening the aluminum frame ( I am opposed to carbon frame). Lastly, the front end geometry might need to be tweaked since I am required to run ALOT of spacers AND a high riser bar to achieve a setting of equal bar and saddle height.
Bike Setup: Full XT, Thomson post/stem, WTB saddle, Fox Talas, XTR pedals
Date Reviewed: April 30, 2012
Strengths: Quality of build, suspension performance, super stiff frame, geometry/head tube angle feels more all mountain than cc.
Weaknesses: No carbon option.
Date Reviewed: April 17, 2012
Strengths: Suspension, handling, durability,
Keep in mind, these bikes run large. I went from a 19" Trek Cobia 29er to a Medium Pivot 29er. A side by side measurement shows them to be nearly equivalent, except for the handle bars. The handle bars on the Pivot are much larger.
If you are serious about spending this much money on a mountain bike, this is the bike you want.
Date Reviewed: April 14, 2012
Strengths: Climbing. Descent. Handling. Paint. Suspension.
Weaknesses: Rider Mortality
Price Paid: $2000.00
Purchased At: Built from various s
Similar Products Used: Nothing comes close to this, not even the Mach 4 and Mach 5.
Bike Setup: SRAM XO and X7.
Lefty Speed front shock thanks to a Project 321 adaptor.
Date Reviewed: March 20, 2012
Strengths: Stiff, agile, 26er feel, very well built
Weaknesses: a bit on the heavy side
Duration Product Used: 2 Years
Price Paid: $3000.00
Purchased At: DWW
Similar Products Used: Kona Hei Hei, Niner RIP9, Specialized Stumpjumper FSR
Bike Setup: XT Build, custom wheelset/AC hubs w/ DT Swiss rims
Date Reviewed: December 29, 2011
Strengths: Great Handling, Pivot are right- it has a 26er feel!, amazing pedal efficancy in any condition. fast, climbes great. very plush ride, but yet a lot of feedback from the trail.
Climbes even better when fork set to 120mm!!! you instantly feel its easier to climb for some reason!
Weaknesses: Color schem could be more creative...
Duration Product Used: 6 months
Price Paid: $5600.00
Purchased At: Matzman, Local Pivot
Similar Products Used: Gary Fisher Hi-Fi Pro 29er.
Bike Setup: Full X9, SRAM Carbon 2X10 Crank, Fox Talas RLC 95-120 fork. American Classics MTB Wheelset. Chris King Headset.Hope mono mini brakes.
Thomson elite stem & seatpost. Cranck Brothers Iodin 11 carbon handlebar, 680mm, low rise.
Specialized phenom Expert seddal. Specialized The Captain Control 2Bliss tires.
Date Reviewed: November 21, 2011
Strengths: Great handling in tight switchbacks and technical terrain, great climbing ability (no front wheel lift & no rear wheel grip issues), no gyroscopic feeling in the front wheel when turning (common to 29ers), large frame was sized perfect for 6'-2" rider with 34" inseam.
Weaknesses: The lock-on grips that came with the bike were too thin for my big paws. I immediately bought some Oury lock-on grips. Really other than that I cannot think of any negatives. This bike far exceeded all the others I test rode.
Duration Product Used: 3 months
Price Paid: $3400.00
Purchased At: Orange Peel Bicycle
Similar Products Used: Trek EX8, Rocky Mountain Slayer 50, Yeti 575
Bike Setup: 2011 Pivot Mach 429, SRAM X9 Build, Size Large
Date Reviewed: November 14, 2011
Strengths: Stiffest suspension frame owned, efficient pedaling, bombproof frame design, great welds
Weaknesses: A little on the heavy side for XC racing
Duration Product Used: Less than 1 month
Similar Products Used: Lynskey pro29, Santa Cruz tallboy, yeti asr,
Bike Setup: 2011 medium frame, 2012 fox 120RLC kashima, stans ZTR arch 29er, formula K24 brakes, ritchey carbon bars & stem, 1X9 drivetrain (XT cranks, XT rear cassette, Sram X9 rear der)
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I am considering sending in my shock along with my fork to Push for their Factory Tuning System. Has anyone sent there Mach 429 RP23 to Push for their Factory Tuning System? Will this tuning drastically modify how the shock was designed by Fox to work with the 429 frame? I assume Pivot contracted ... Read More »