First Look: Pivot Mach 4 Carbon 27.5 – XC and more

27.5 Cross Country News

Pivot Mach 4 Carbon

Pivot Cycles is well known for producing really popular high performance carbon mountain bikes like their Mach 6 Carbon all mountain/enduro machine and their Phoenix DH Carbon lightweight DH racer. Here at Bike Press Camp in Park City, Utah Pivot is keeping that tradition alive by announcing their all new Pivot Mach 4 Carbon.

In this video, Chris Cocalis (Founder/CEO/President) of Pivot Cycles goes over the highlights of the Mach 4 Carbon.

Completely redone from head-to-toe with a bit more travel (from 110 to 115mm) and bigger 27.5″ wheels and tires, the new Mach 4 Carbon blurs the lines between XC race and All Mountain Trail. It is the lightest full suspension frame that Pivot has ever made. Frame weight with shock is 5.1 lbs.

Pivot Mach 4 Carbon on scale

The Pivot Cycles Mach 4 Carbon 27.5 features:

  • 115mm dw-link suspension with race and trail tuning
  • Full carbon frame featuring Pivot exclusive hollow box internal molding technology
  • 27.5” wheels
  • XS, S, M, & L sizing, with our X-small featuring the lowest stand-over clearance of any 27.5” suspension bike made
  • Full length internal cable routing, and Shimano Di2 compatible with Pivot’s exclusive cable port system
  • Dropper post compatible with internal routing
  • Enduro Max cartridge bearings
  • Custom tuned Fox Float CTD Kashima rear shock
  • Frame weight from 5.1lbs (2.3kg)
  • Complete bike weights from 22lbs (10kg)
  • 2 sets of bottle cage mounts
  • Rubberized leather downtube and swingarm protection

Pivot Mach 4 Carbon

Even the small details were given attention and the cable routing on this frame offers all kinds of options, going beyond internally routed dropper post cables. The upper end models have Shimano’s electronic Di2 drivetrain options and there are ports built in for placing the battery in the frame out of sight and harm’s way. Very slick, indeed.

Pivot Cycles - Mach 4 Carbon

Check out this promo video from Pivot Cycles showing one of their team riders putting the bike through its paces. Chris Cocalis provides the explanation of the bikes development and features.

The Mach 4 Carbon comes in 4 sizes (XS, SM, MD, LG) and in two colors (Carbon/Blue and Anthracite Grey/Green). The Mach 4 is available as a complete bike with 11 build options ranging from the top of the line XTR Di2 2x at $8999 down to the SLX build at $4499. It is also available as a frame kit (frame, Fox F120 FIT CTD Kashima shock, Pivot headset and either Shimano or SRAM bottom bracket) for $3799.

Here is the complete price sheet for all options (including pricing for the new Phoenix DH Carbon).

Mach 4 price sheet

Our Take

I actually got to spend a little bit of time on the Mach 4 doing two short runs down a trail called Deer Crest here at Deer Valley Resort and the Mach 4 definitely feels like it has more travel. Instead of 115mm, it feels like it has 125mm of travel that is very active and responsive, but efficient at the same time. If you have the suspension set soft (as I did for these downhill oriented trails) and you stand up and hammer up a short, steep climb you can feel a bit of suspension actuation (like pretty much all active suspension designs). But that is what the platform settings on the shock are for. Pivot Cycles set out to build a highly capable bike and they have done so. This bike is the right bike for many people out there, even those who won’t admit that they currently riding on too much travel. It’s not how much travel you have, it’s what you do with it and Pivot has maximized every millimeter of the 115 on this rig. We hope to get a Mach 4 Carbon in for a long-term testing in the near future.

About the author: Gregg Kato

Gregg Kato studied journalism and broadcasting in college while working many different jobs including deejaying, driving a forklift and building web sites (not all at the same time). Kato enjoys riding local Santa Cruz trails. Besides being an avid mountain biker, he is also a motorcycle fanatic. Two wheels, one Passion.

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  • Jeff says:

    $700 more than a US made Turner Flux but with a couple of neat features. It looks like it weighs .57 lb less than the Flux. I like the low top tube but that is a lot of money!

  • KRob says:

    At first I was a bit disappointed that it came in at 115mm but listening to CC’s explaination on how they arrived at that makes sense for its intended purpose. Plus it leaves room for a revamped 27.5″ carbon Mach 5 at 130-140mm.

  • James says:

    Loving my Turner Flux 27.5, but would like to give this bike a try. Can’t wait for the local Pivot dealer to have a demo to ride!

  • AngryBee says:

    I’m disappointed that CC makes a point to cater to shorter riders but flips a middle finger at taller riders. It was explained to me, they have 29ers for taller riders. What a load of BS. I’m digging the Flux 650B and am glad Dave Turner doesn’t suffer from the same narrow mindedness CC does. Way to eliminate market share CC

  • short geezer says:

    re:AngryBee et al:
    First, ALL 29s are ONLY suitable for average-to-tall riders, period, so stop whining. I am never going to exceed 5’4″ and even the XS mach 4 top tube is 4″ too long for me. There are ZERO trail-to-xc style bikes right now in 26″ config, so SFU. Makers have abandoned the aging market base that made them, first by losing lowest gear equiv by 26 to 29 sizing (11.5% or 22 to 24.5 granny increase), now the bogus 2x and most absurd 1x systems further limiting actual climbing gears, which even strong riders often describe as compromising their climbing limits. That’s eliminating market share, buddy.
    If I ever break my 13 yr old Litespeed Ti softtail, that may be the end of my MTB life; no average adventurers appear to be riding the White Rim in a day anymore. It’s all the Rad-Dude mode, gettin’ big air via lifts, or bad ass mega races or something. Di2 for MTB? Ridiculous, but it’ll sell to idiots.

    • Cale says:

      The 1x set up for mountain bikes allows a simple cockpit and a fast riding light weight race feel. The companies simply sell what sells. The di2 doesn’t float my boat but for the people who love to ride and enjoy nice stuff I’m sure they will love it. currently the 29ers make sense for the taller guys or even for riders who want to be more stable on the trails and be in more control. Say what you must its called an opinion for a reason.

  • Mike says:

    Why aren’t bike makers offering size-specific wheels and travels, with some overlap:
    – 26″ wheels for XS to M frames, 100 mm travel
    – 27.5″/650B wheels for S-L frames, 115 mm travel
    – 29″/700C wheels for L-XL frames with …… aha, here is the problem. A 29″ wheel that has 130mm + travel is just not a very nimble machine. Big wheels and great suspension just don’t work together, even on some of the larger frame sizes.

    But of course manufacturers are doing their best to kill the 26″ wheel that we all have in our garages. And the big wheel bikes will sell to the masses because the vast majority of ignoramuses simply like big numbers.

    I’m 6’1″ tall and I prefer small numbers: least possible weight, 26″ wheel, no more than 100mm travel at either end for XC riding. I can, and do, more than keep up with the parade of 29ers on the trails, even in the rough stuff. So all Pivot has been able to do here is take their expensive aluminum Mach4, add more weight and size in the tires, and scrub off that weight by going to carbon fiber. End result? A machine that costs way more but handles no better.

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