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EB16: Pivot Mach 429 SL gets a Boost, plus tire compatibility

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Pivot’s Mach 429 SL was already an amazing bike. So good in fact, that the newest version has changed very little. Even though there isn’t a lot new, the changes keep the Mach 429 SL current, and end up giving the bike another trick up its sleeves in terms of tires…

LM-Pivot-catalog-17-259

Keeping in line with Pivot’s carbon bikes, the Mach 429 SL uses their Hollow Core Internal Molding technology to create a light frame without excess resin, wrinkles, and voids in the carbon. Weights appear to be very close to the previous version with frames starting at 5.3lbs (2.4Kg) and completes capable sub 23lb (10.4kg).

Mach429SL_Geometry

Available in S-XL frames, Pivot recommends the height breakdown below:

  • Small: 5’4″ – 5’10”
  • Medium: 5’9″ – 6’1”
  • Large: 6’1″ – 6’4”
  • X-Large: 6’3″ +

LM-Pivot-catalog-17-3874

LM-Pivot-catalog-17-3858 LM-Pivot-catalog-17-3850

LM-Pivot-catalog-17-3867 LM-Pivot-catalog-17-3848

The biggest change to the 100mm travel frame is the addition of Boost 148 x 12 rear spacing. The move allows for stiffer rear triangle as well as stiffer 29″ wheels to be used and offers additional tire clearance. That clearance can be used for a plus tire configuration with room for 29 x 2.35″ and 27.5 x 2.8″ tires.

Built to include the Pivot Cable Port System, the Mach 429 SL is 1x and 2x compatible along with mechanical or Di2 drivetrain compatible with the battery stashed in the downtube of the frame. Along with the PF92 bottom bracket and ISCG05 tabs, the frame uses post mount 160 disc brake tabs which will fit up to a 180mm rotor, internal dropper routing for a 30.9mm post, and provisions for two water bottle cages.

The Mach 429 SL will be sold in 14 different configurations with 120mm travel forks and pricing starting at $4,199 and will be available immediately.

Features:

  • Frame weight from 5.3lbs (2.4Kg) and sub 23lb (10.4kg) complete.
  • 100mm of renowned dw-link® suspension tuned for race and trail handling.
  • World Cup caliber full carbon frame featuring leading edge carbon fiber materials and Pivot’s proprietary hollow core internal molding technology.
  • Pivot’s race-winning, trail-slaying geometry.
  • 29-inch wheels for the fastest laps and superior rollover in technical terrain.
  • Full length internal cable routing and Shimano Di2 integration via Pivot’s exclusive, easy-to-maintain Cable Port System
  • Internal dropper post compatible
  • Cold forged alloy linkages with Enduro Max Cartridge Bearings
  • Fox Float Kashima Factory shock, performance tuned for the Mach 429SL
  • Frame weights from 5.2lbs
  • Highly durable rubberized leather downtube and swingarm protection
  • Updated to Boost™ 12 x 148mm rear spacing
  • 5”+ compatible (up to 2.8” tires)
  • Designed to work with forks from 100-120 mm in travel.
  • Weight conscious matte carbon finish with Red or Blue color options
  • Available in sizes S, M, L, XL for riders between 5’3″ and 6’4″

Mach429SL_Geometry

pivotcycles.com

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12 Comments
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Stu
Stu
7 years ago

Seems they just convinced us why superboost was so great on their other plus bike, the switchblade. Now this just gets standard boost.

thesteve4761
thesteve4761
7 years ago
Reply to  Stu

Apples to Oranges. Totally different bikes. Also, show me the hyper light XC wheels you can buy with 157 spacing please.

Graeme
Graeme
7 years ago
Reply to  thesteve4761

To be fair you can’t buy ANY 29er wheels with 157 spacing at the moment…

SImenf
SImenf
7 years ago

Nice bike – still pretty short reach and steepish head angle.

mateo
mateo
7 years ago
Reply to  SImenf

The 429 Trail is the slacker/longer option. It was already Boost/Plus compatible.

big ring
big ring
7 years ago

Press fit? Creak-creak-creak. When many companies are going back to 73 threaded, for obvious reasons, why wouldn’t Pivot do the same?

Graeme
Graeme
7 years ago
Reply to  big ring

Because they’ve partnered closely with Shimano and co-developed BB92. To be fair BB92 w/Shimano BB is probably the most reliably press fit BB and works pretty well (but yes I’d prefer threaded)

Dan
Dan
7 years ago

With 17.65″ chainstays and a press fit BB, they failed to address the two things on the 429 that make it a dated design.

Ed Braunbeck
Ed Braunbeck
7 years ago
Reply to  Dan

The chainstays are inline with the Specialized Epic which seems to be the standard to measure against. In terms of the press fit, I’ve found them to be quite durable when installed correctly. I would agree that it is harder to service at home.

chinoDCR
chinoDCR
7 years ago
Reply to  Dan

I would agree with the PF comment if it was any other bike as I have had creacking issues from it in other bikes. But I’ve had 2 Pivots now (an aluminum Mach 4 and the Mach 4 Carbon) and neither one has given me any problem in this area or any other for that matter.

Joey B
Joey B
7 years ago

A great bike just got better and even more versatile.

Antti
Antti
7 years ago

Has anybody tried this bike or is it just coming to the shops? I haven’t found a single comment how it is to ride. How much have they been able to reduce the weight?

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