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As both an XC race bike and as an ultra-light trail bike, the Mach 4 Carbon performs unlike anything else in the category. Pivot’s premier XC/Trail bike rolls on 27.5” wheels, features 115mm of dw-link travel*, and next generation race/trail geometry, paired with the lightest full-suspension frame we have ever made. Whether you are a pure XC racer looking for something with the lightning acceleration of 26” wheels and the rolling speed of a 29er, or if you are a trail rider seeking a light, nimble, and responsive ride, the Mach 4 Carbon has you covered, from the World Cup to Rio to your local trail.

dw-link™ Suspension

The dw-link™ suspension has been tuned to provide instant acceleration with hardtail efficiency, while delivering the incredible climbing traction that all our bikes are famous for. The short chainstays, spacious cockpit, and the incredibly stiff carbon chassis enable you to achieve your fastest time on the climbs. When descending, the Mach 4 Carbon comes alive. With ultra-stable front end geometry, a low BB height, and 115mm of travel, you can truly light it up on the descents, tackling the roughest sections of any race course with ease and confidence; cornering like the bike is on rails.

Pivot Carbon Technology

The Mach 4 Carbon begins with our highly engineered carbon chassis design, designed and prototyped for ideal layup structures, tube sections and material choices in every size. We then bring this vision to reality via our proprietary hollow core internal molding process.

For those seeking the top of the line in components and compatibility, the Pivot Mach 4 Carbon is fully Di2 integrated and internal dropper post compatible via Pivot’s Cable Port System. Internal routing for any component is easy to install and maintain via large, easy to access ports and interchangeable covers. Riders have the ability to switch between a variety of cable routing options, allowing for the cleanest possible installation of wires, batteries and cables. No matter what components or gearing you choose, now or in the future, we have you covered.

Fox Factory Suspension

Mach 4 Carbon is spec’d with the Fox Float DPS (Dual Piston System) shock custom tuned specifically for XC and Endurance racing. The Float DPS shock features settings and a design that allows for an incredibly plush feel with a wide range of damping control while also offering an extremely positive “firm” position for fast climbs. These features are direct complements to Pivot’s suspension tuning and when combined with the dw‐link’s® patented position‐sensitive anti‐squat, gives riders even better traction on steep ups and over rough trail.

Downhill and in technical terrain, the 115mm of dw‐link® suspension performs like a longer travel bike, and the happy medium of the 27.5 inch wheel gives athletes the rollover advantage of bigger diameter options with the nimble feel of a BMX bike on drops and hips.

To match the rear suspension, we’ve spec’d the Mach 4 Carbon with either a 130mm FOX 34 Factory fork, or optional ultra lightweight 100mm travel 32step-cast XC race specific for fine tuning performance to your exact specifications.

All the Right Details

Other essential details include post mount disc brake mounts for easy set up and weight savings, stealth dropper compatibility and Enduro Max cartridge bearings throughout. We’ve got clearance for a waterbottle in every size, including X-Small, and 4 color options that are sure to coordinate perfectly with the best components, build kits, and your team kit.

We take quality and workmanship seriously at Pivot, and know that the details are what make a great rider experience. Every Pivot Cycles frame undergoes a 28 step assembly and quality control check to ensure that the only thing you need to think about is the ride.

*X-Small size features 100mm travel. See FAQ tab for more information.

Mach 4 Carbon Features

  • 115mm dw-link® suspension* with race and trail tuning (X-Small size features 100mm travel)
  • Full carbon frame featuring Pivot exclusive hollow box internal molding technology
  • 27.5" wheels
  • XS, S, M, L & L(long) 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 DPS 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
Image: Patented World Wide

Geometry Chart

geometry graphic

100mm Travel Fork

  XSSMLL (long)
ASeat Tube Length (C-T)14.5016.0017.5019.0020.00
BTop Tube Length21.8522.9523.7524.5025.40
CHead Tube Length3.354.004.254.725.12
DHead Tube Angle68.50°69.20°69.20°69.20°69.50°
ESeat Tube Angle73.80°73.00°73.00°73.00°73.40°
FChain Stay Length16.8516.8516.8516.8516.85
GBottom Bracket Height12.8012.8012.8012.8012.80
HStandover Height26.0626.2626.3427.0127.30
IWheelbase42.2042.7243.5044.1745.28
 Stack21.6522.4022.6423.1123.50
 Reach15.4315.9816.6917.2818.27

XL size available July 2015

120mm Travel Fork

  XSSMLL (long)
ASeat Tube Length (C-T)14.5016.0017.5019.0020.00
BTop Tube Length21.8522.9523.7524.5025.40
CHead Tube Length3.354.004.254.725.12
DHead Tube Angle67.50°68.20°68.20°68.20°68.60°
ESeat Tube Angle72.80°72.00°72.00°72.00°72.40°
FChain Stay Length16.8516.8516.8516.8516.85
GBottom Bracket Height13.0013.0013.0013.0013.00
HStandover Height26.6126.7726.8527.4827.56
IWheelbase42.5043.0343.8044.4545.55
 Stack21.9322.6822.9123.3923.78
 Reach15.0815.5916.3016.8817.87

XL size available July 2015

130mm Travel Fork

  XSSMLL (long)
ASeat Tube Length (C-T)14.5016.0017.5019.0020.00
BTop Tube Length21.8522.9523.7524.5025.40
CHead Tube Length3.354.004.254.725.12
DHead Tube Angle67.10°67.80°67.80°67.80°68.20°
ESeat Tube Angle72.40°71.60°71.60°71.60°72.00°
FChain Stay Length16.8516.8516.8516.8516.85
GBottom Bracket Height13.4013.4013.4013.4013.40
HStandover Height67.9068.7069.3070.6071.20
IWheelbase42.6743.1543.9444.6045.70
 Stack22.0522.8023.0323.5423.86
 Reach14.8815.3916.1016.6917.68

XL size available July 2015

Values in inches    CM

Graphics, colors, and specifications are subject to change without prior notification.
MODELTEAM XTR Di2 2x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR Di2 11Spd GS
FRONT DERXTR Di2
SHIFTERSXTR Di2 11Spd L/R
BRAKESXTR M9020 TRAIL
CRANKSRace Face NEXT SL 24x34
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX TEAM Carbon (dropper options available)
SEAT PIVOT WTB VOLT TEAM
CASSETTEXTR M9000 11-40 11Spd
WHEELSDT XMC 1200 CARBON BOOST F
WHEEL UPGRADEN/A
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$9,799.00
MODELTEAM XTR Di2 1x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR Di2 11Spd GS
FRONT DERN/A
SHIFTERSXTR Di2 11Spd R
BRAKESXTR M9020 TRAIL
CRANKSRaceFace NEXT SL 30T
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX TEAM Carbon (dropper options available)
SEATPIVOT WTB VOLT TEAM
CASSETTE XT M8000 11-46 11Spd
WHEELSDT XMC 1200 CARBON BOOST F
WHEEL UPGRADEN/A
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$8,799.00
MODELTEAM XTR 2x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR 11Spd GS
FRONT DERXTR Side Swing
SHIFTERSXTR 11Spd
BRAKESXTR M9020 TRAIL
CRANKSRace Face NEXT SL 24x34
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX TEAM Carbon (dropper options available)
SEATPIVOT WTB VOLT TEAM
CASSETTEXTR M9000 11-40 11Spd
WHEELSDT XMC 1200 CARBON BOOST F
WHEEL UPGRADEN/A
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$8,299.00
MODELTEAM XTR 1x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR 11Spd GS
FRONT DERN/A
SHIFTERSXTR 11Spd R
BRAKES XTR M9020 TRAIL
CRANKSRaceFace NEXT SL 30T
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX TEAM Carbon (dropper options available)
SEATPIVOT WTB VOLT TEAM
CASSETTE XT M8000 11-46 11Spd
WHEELSDT XMC 1200 CARBON BOOST F
WHEEL UPGRADEN/A
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$7,799.00
MODELTEAM XX1 EAGLE (12 Speed)
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXX1 Eagle 12Spd
FRONT DERN/A
SHIFTERSXX1 Eagle 12Spd
BRAKESSRAM Guide Ultimate
CRANKSSRAM XX1 Eagle 30T
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX TEAM Carbon (dropper options available)
SEATPIVOT WTB VOLT TEAM
CASSETTEXX1 Eagle 10-50 12Spd
WHEELSDT XMC 1200 CARBON BOOST F
WHEEL UPGRADEN/A
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$8,099.00
MODELPRO XO1 Eagle (12 Speed)
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXO1 Eagle 12Spd
FRONT DERN/A
SHIFTERSXO1 Eagle 12Spd
BRAKES XT 8000
CRANKSSRAM XO1 Eagle 30T
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX RACE Carbon (dropper options available)
SEATPIVOT WTB VOLT RACE
CASSETTEXO1 Eagle 10-50 12Spd
WHEELSDT SPLINE-TWO M1700 BOOST F
WHEEL UPGRADE DT XMC CARBON BOOST F
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$6,399.00
MODELPRO XT/XTR 2x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR 11Spd GS
FRONT DERXT Side Swing
SHIFTERSXT 11Spd
BRAKESXT 8000
CRANKSXT 8000 24/34
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX RACE Carbon (dropper options available)
SEATPIVOT WTB VOLT RACE
CASSETTEXT M8000 11-42 11Spd
WHEELSDT SPLINE-TWO M1700 BOOST F
WHEEL UPGRADE DT XMC CARBON BOOST F
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$5,899.00
MODELPRO XT/XTR 1x
FRAMEMACH 4 Carbon
SHOCKFOX FLOAT DPS KASHIMA
FORKFOX 34 FACTORY 27.5" 130mm KASHIMA
HEADSETPIVOT PRECISION SEALED BEARING
REAR DERXTR 11Spd GS
FRONT DERN/A
SHIFTERSXT 11Spd R
BRAKESXT 8000
CRANKSRace Face AEFFECT SL 30T
BARPHOENIX Carbon Riser 740mm
GRIPSPHOENIX Lock On
STEMPHOENIX TEAM
POSTPHOENIX RACE Carbon (dropper options available)
SEATPIVOT WTB VOLT RACE
CASSETTE XT M8000 11-46 11Spd
WHEELSDT SPLINE-TWO M1700 BOOST F
WHEEL UPGRADE DT XMC CARBON BOOST F
TIRESMAXXIS Ardent Race 27.5x2.35 TR
SIZEXS, S, M, L, XL
MSRP$5,699.00
MODELRACE XT 1x
FRAME MACH 4 Carbon
SHOCK FOX FLOAT DPS KASHIMA
FORK FOX 34 PERFORMANCE BLACK 27.5" 130mm
HEADSET PIVOT SEMI-SEALED CARTRIDGE
REAR DER XT 11Spd GS
FRONT DER N/A
SHIFTERS SLX 11Spd R
BRAKES Shimano M615
CRANKS Race Face AEFFECT SL 30T
BAR PHOENIX SPORT ALLOY
GRIPS PHOENIX Lock On
STEM PHOENIX RACE
POST PHOENIX SPORT ALLOY (dropper options available)
SEAT PIVOT WTB VOLT SPORT
CASSETTE XT M8000 11-46 11Spd
WHEELS SUN RINGLE CHARGER COMP BOOST F
WHEEL UPGRADE N/A
TIRES MAXXIS Ardent Race 27.5x2.35 TR
SIZE XS, S, M, L, XL
MSRP$ 4,699
Graphics, colors, and specifications are subject to change without prior notification..

Product Reviews

"The Mach 4 Carbon is, hands-down, the best pedaling full-suspension bike out there. It's become my go-to World Cup race bike as the DW-link suspension not only allows me to attack the technical descents but allows me to climb more efficiently through increased seated and standing traction. On my Mach 4 Carbon, you'll find that my Fox Float DPS is in the "Open" or "Medium" setting 99% of the time racing or training.  "

- Chloe Woodruff & the Mach 4 Carbon

"This is the one-bike quiver. I ride my Mach 4 Carbon on the fast, flowy singletrack of Colorado and the rocky tech of Southern Utah. It performs equally well in both places. I've never had such a light bike that handled so well and climbed so fast. I'm 5'6" and ride a medium."

- Carla Hukee, Pivot Employee

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XS Mach 4 Carbon Review: the Best Small Women’s MTB?

02.23.2017 | News

The Smallest, Best Women's Mountain Bike? Leah Barber is a small, woman MTB rider who has been on the hunt for just the right mountain bike and was super excited to undertake the XS Mach 4 Carbon review for Singletracks.com. "For years I’ve struggled to find a bike that is light, capable, and most importantly, fits all 5-feet, 0-inches of my petite self." "So imagine my delight when I found out Pivot...

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Chloe Woodruff & Rose Grant aim high on the World Cup

02.01.2017 | News

"As two of the nation’s top XC racers, Chloe Woodruff and Rose Grant’s work lives cross over into their personal lives. How could it be otherwise? But the race to the finish is not so much about that one second when they cross the line. Rather, these two women live each day as champions." Pivot Cycles is proud to sponsor two of the fastest women in mountain biking. Between the two of them, they race on...

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Mach 4 Carbon review! What makes a great women’s mountain bike?

02.01.2017 | News

Mountain Flyer Magazine's Trina Ortega is 5'2" with a 28" inseam. She's struggled for years to find a great full suspension bike that fits and rides as well as the bikes her taller friends ride. In this Mach 4 Carbon review, she tests what makes a great women's mountain bike. "I want what everyone else is offered: the rolling advantage of the bigger wheel. Along with that, I want a full suspension, light...

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“Equally happy on a buff racetrack or scampering through rocky descents” – Flow MTB

03.02.2016 | Online Media

"You can actually see the value here in the superb finish and zero-compromise performance. It’s lightweight yet anything but flimsy, efficient but magnificently smooth, precise without being unmanagably sharp, and it defies being pigeon holed - This bike doesn’t just continue Pivot’s legacy, it pushes the brand even further ahead of most of the pack.". This is an incredibly detailed review of the Mach...

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Shimano Di2 and Pivot’s Mach 4 Carbon

03.02.2016 | Online Media

"The dirty version of Di2  is even sweeter than we'd hoped". Pivot Cycles works in close collaboration with Shimano, and the benefit to our riders is huge - the Mach 4 Carbon is the very first mountain bike to be fully integrated with Shimano's XTR Di2 shifting system, via the Pivot Cable Port System. Get the details from Bicycling's...

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IMB Bike Mag Review of the Mach 4 Carbon

06.24.2014 | Online Media

 Introducing the 2015 Pivot Mach 4 Carbon With so many great bikes on the market, striving to remain competitive is as fierce in the design room as it is on the race track. Towards that end, Pivot went back to the drawing board and have emerged with a model that introduces the next generation of race/trail geometry packed into its lightest (2.3 kg / 5.1 lbs) full suspension frame they had yet to produce! As...

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Enduromag.com: Pivot Cycles comes full circle with the Mach 4 Carbon

06.20.2014 | Online Media

PressCamp 2014: Pivot Cycles comes full circle with the Mach 4 Carbon Words: Wil Barrett. Photos: Pivot Cycles & Wil Barrett Back in 2007, Chris Cocalis unveiled his brand new bike company called Pivot Cycles. After cutting ties with his previous company Titus, Chris made the move to Phoenix in Arizona and began working on an all-new dual suspension mountain bike that would later be known as the...

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Dirt Rag – Inside Line: New Mach 4 Carbon from Pivot

06.19.2014 | Online Media

The Mach 4 has always been an important bike for Pivot Cycles. It was the brand’s first big hit, and long a mainstay of the lineup. But let’s face it, a 26-inch bike with 100mm of travel is a hard sell these days, and the new, fourth-generation Mach 4 Carbon has not only embraced all the current design trends and standards, it is creating new ones. Like all Pivot bikes, the heart of the full carbon frame...

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SingleTrack Magazine Reviews the Mach 4 Carbon

06.18.2014 | Online Media

Chris Cocalis was at PressCamp to launch his new Mach4 Carbon. The Mach4 was Pivot’s first bike, launched back in 2007. Now, fully redesigned to take advantage of Pivot’s carbon experience. With a stiffness akin to Pivot’s popular 429 Carbon model, the frame comes in at 5.1lbs and a complete bike with XX1 is 22lbs. The bike has also been designed to be as future-proof as possible – with XTR Di2 cable...

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BikeRumor.com reviews the Mach 4 Carbon

06.18.2014 | Online Media

Pivot Unveils the All New Mach 4 – Their New Carbon, 27.5″, Short Travel XC/Trail Weapon Pivot Cycles has a lot of bikes in the current line up, but the Mach 4 has been around since the beginning. As the very first Pivot back in 2007 when Chris Cocalis started the company after his stint with Titus Bikes, the Mach 4 was the introduction to the Pivot way – DW Link equipped, high quality, confidence...

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MBA Reviews Pivot’s 2015 Mach 4 Carbon: Redefining Riding

06.17.2014 | Online Media

Now in its 4th generation, the Pivot Mach 4 Carbon was introduced at the snow-covered 2014 PressCamp and rolls on 27.5” wheels, features 4.5 inches of travel, and introduces the next generation of race/trail geometry—all paired with the lightest full-suspension frame Pivot have ever made. Whether you are a pure XC racer looking for something nimble, with the acceleration of 26” wheels and the rolling...

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

06.17.2014 | Online Media

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.   Read the review here!...

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PinkBike Review of the Mach 4 Carbon

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Frequently Asked Questions

Which size bike should I purchase?

To ensure the best sizing, we recommend that you visit your local Pivot dealer to get a professional fit and refer to our geometry chart to check your measurements. However, we can provide a rough guideline:
X-Small: 4'10" – 5’5”
Small: 5'4" – 5’8”
Medium: 5'7” – 5’10"
Large: 5'10” – 6’0”
Large (long): 5'10"- 6'3"

What is a Large (long)?

The Large long version of the Mach 4 offers a longer reach measurements than the standard large while fitting a similar to slightly taller height range as the standard large frame. With the Mach 4’s very low stand-over height, and excellent trail bike performance, many riders are stepping up a frame size to get a longer front center which works well for more technical terrain with a shorter stem. This meant that even some riders just under 6’ were left without a perfect option so this past year we added this additional size. This puts the reach measurement of the large long Mach 4 close to that of the new Switchblade. Please visit your local dealer or call one of our Pivot Customer Service Representatives at 877.85.PIVOT if you have any questions regarding what size Mach 4 Carbon is best for you.

How do I set the sag on my Mach 429 SL?

We make it easy to get the best ride out of your Pivot bike with a simple sag indicator already installed on your bike, and this follow-along video featuring our own Bernard Kerr:

https://vimeo.com/pivotcycles/sag

What bottom bracket is used on the Mach 4 Carbon and which cranks are compatible?

Pivot is the first frame manufacturer to feature the 92mm wide bottom bracket shell standard, originally developed in conjunction with Shimano XTR. With the press fit 92 system, there are no external washers or threads in the shell. The bearings are housed in light composite resin cups with a full sealed sleeve to keep out the elements. This design allows for easy crank installation, with no frame facing or special spacers required. Chain line is perfectly optimized and as an added advantage, the bearings are extremely easy to replace. Another bonus is that the XTR version includes a 3 year warranty from Shimano. The system works with Shimano, FSA and Race Face cranks (all compatible with the Shimano cup design) as well as the SRAM GXP system for which SRAM offers both standard and ceramic versions. In addition, Enduro and several other aftermarket companies offer both replacement bottom brackets and bearings to support every major crank brand.

Are there any other bottom brackets that will work with the Mach 4 Carbon? Can you upgrade to ceramic bearings?

We use a Press Fit 92 BB (sometimes called PF92 or BB92) design. Almost every crank and BB manufacturer offers a bottom bracket that is compatible with the Press Fit 92 system. Enduro, SRAM, FSA and others all offer ceramic bearing options.

What is the narrowest Q factor crank that the Mach 4 Carbon will accept?

The Mach 4 will accept cranks with a Q factor measurement as low as 156mm (Such as the narrower option in the SRAM XX1 or the new XTR Race crank). Of course, anything greater than 156mm will work as well. Most standard MTB Q factor measurements are at 163mm.

What hub/wheel spacing does the Mach 4 Carbon use?

The Mach 4 Carbon uses the 142mm X 12mm hub/wheel spacing. Our custom 12mm DT Swiss axle is included with the frame. The axle is based off of Shimano’s 12mm through axle specifications for length and thread pitch so if you were ever to lose your axle, a Shimano or Shimano compatible axle will work properly as well.

What is the thread pitch on the rear axle?

Pivot uses a 1.5 thread pitch on the rear thru axle. You can order one through our online store here:

http://www.pivotcycles.com/store/index.php?route=product/product&path=60&product_id=133

What size seatpost does the Mach 4 Carbon use?

The Mach 4 frame uses a 30.9mm seatpost.

What size seat clamp does the Mach 4 Carbon use?

The Mach 4 frame uses a 34.9mm or 35mm (as some manufacturers call it) seatpost clamp.

Can I use a dropper post with this frame?

Yes, both internally and externally-routed dropper posts are compatible with the Mach 4 Carbon frame.

What front derailleur does the Mach 4 Carbon use?

The Mach 4 Carbon, we use a DM (direct mount) style front derailleur. You can use a SRAM direct mount top pull X-9 or XO version for any 2X system. The SRAM top pull is best if you are running a 10 speed rear cassette and a large front chainring smaller then a 38 tooth. If you are running a 2X or 3X Shimano system with 10 speed rear cassette then use a Shimano direct mount FD. We specify a top pull on the Mach 4 but their dual pull models will work as well. If you are running Shimano’s new 11 speed XTR rear cassette then we recommend the new direct mount XTR side-swing FD. The new XTR side-swing F/D also works incredibly well on current Shimano 10 speed rear cassette systems when mated with any Shimano XT or above left shifter and a 2X front with 36 tooth or small big ring. It is the only Shimano front derailleur that can really be used with front gear combinations such as 36/24, 36/22, 34/24, and 34/22.

What headset do I need for the Mach 4 Carbon?

The Mach 4 Carbon uses a ZS (zero stack) 44mm top and (zero stack) 56mm bottom, or a Chris King Inset 2.

Can I run a large water bottle in the front triangle on the Mach 4Carbon?

Yes, the Mach 4 carbon was designed to clear a large water bottle on top of the down tube. For best clearance, we suggest removing the rear shock and swapping the spacer hardware from front to rear. Re-install the shock with the air can side facing the rear triangle and the CTD adjusters facing down, away from the top tube. This will open up the clearance significantly at the front, allowing easy access to larger bottles. This is the setup that all of our racers run, and we designed the frame to be run with a flipped shock for those wanting to use large bottles.

We also include a spacer to be placed under the upper water bottle cage mount that changes the angle of the water bottle cage enough to provide the extra clearance required to prevent a large water bottle from rubbing against the down tube.

m4c-flipped-shock

How wide of a tire can I run on the Mach 4 Carbon?

We use the Maxxis Ardent Race 2.2 in our complete bike builds. However, the Mach 4 Carbon is designed to easily accept most 2.3 tires in the market. For instance, a Maxxis High-Roller II 2.3 fits with plenty of clearance. For other 2.35 tires in the market, some may fit, but rim width and tire manufacture sizing call outs and tire inconsistency can result in huge difference among both tire brands and individual tires. For anything beyond a 2.3, we suggest you check the fit with your chosen rim and tire combination to make sure it has proper clearance before riding.

How large of a rotor will fit on the Mach 4 Carbon?

The Mach 4 Carbon will clear either a 160mm or 180mm rotor.

What type of rear brake adapter do I need?

No brake adapter is needed for a 160mm rotor. However, many manufacturers make adapters for larger rotor sizes, in which case you would need a 160mm direct mount/ post to post adapter.

What travel fork can I use on my Mach 4 Carbon?

The Mach 4 was designed for forks lengths between 100mm and 130mm travel. We use a 130mm fork in all our complete bike builds (although for special orders you can request a 100mm).

What is the fork offset on the Mach 4 Carbon?

We use a 44mm offset in all our complete bike builds.

What is the eye-to-eye shock length and stroke length on the Mach 4 Carbon?

For the small, medium and large Mach 4 Carbon frames, the eye-to-eye shock length is 7.25 inches and the stroke length is 1.75 inches. The size x-small frame has an eye-to-eye shock length of 6.5 inches and the stroke length is 1.5 inches.

If I want to run a different brand of shock on my Mach 4 Carbon, what else do I need to know?

The Mach 4 shock uses M8 through bolt hardware on both the front and rear. Shock spacer dimensions are 22mm wide front and 36mm wide rear. The frame is designed around a standard size air can volume and we typically run light to medium valving on the compression side (depending on rider weight) and light rebound damping.

What are the torque specs?

A detailed PDF of the torque specs can be found under the "Tech Specs" tab.

Why does the Size X-Small feature 100mm of travel?

In order to optimize the Mach 4 X-small size, we arrived at 100mm of travel for the best combination of stand-over clearance, overall frame fit, and shock tuning for the target weight and height riders that the Mach 4 X-small frame is designed for.

What is the new Switchblade?

Only a few more days until you know all the details! Keep an eye out on this site and follow our Facebook and Instagram pages for all the details and video as soon as it is announced!