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Winner of trail bike and XC bike awards, as well as professional races around the world, the Mach 4 Carbon perfectly embodies our philosophy of designing every Pivot to perform at the pinnacle of its category. For riders seeking the ultimate in lightweight trail bikes, the flickable, confidence inspiring Mach 4 Carbon shines in technical terrain, and anywhere the singletrack gets rough. For racers, the ability to unleash on descents is matched only by the Mach 4 Carbon’s World Cup pedaling efficiency and power transfer. Whether it is time to cut loose on your favorite trail or crush the competition at your next race, the Mach 4 Carbon is one bike that does it all.

TRAIL OR RACE – CONFIDENCE AND CONTROL IN LIGHTWEIGHT FULL SUSPENSION

From the Epic race series, to the Sea Otter Classic, to the Pan Am Games – the Mach 4 Carbon has put athletes on podiums around the world. As race courses evolve to be as technically challenging as some backcountry epics, Pivot’s next generation race/trail geometry is the answer to hitting everything just a little bit faster on every lap.

The Mach 4 Carbon frame is produced using our proprietary hollow core internal molding process, combined with highly optimized layup structures, tube sections, and material choices, tuned for the optimum ride-feel in every size. Frames weigh as little as 5.1lbs (2.3kg) and complete bikes are available under 22 (10kg) lbs.

The new Mach 4 Carbon features a fully redesigned rear triangle with increased stiffness and more tire clearance. The confident handling of the Mach 4 Carbon is complemented by the mid-sized 27.5” wheels with new 148mm BOOST rear hub spacing – all together, providing instant response while maintaining rolling speed through even the roughest sections of a racecourse.

DW-LINK™

“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. 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.”
– Chloe Woodruff, Stan’s NoTubes / Pivot

dw-link™ suspension offers every advantage to the Mach 4 Carbon rider. Tuned to provide instant acceleration with no loss of power, the Mach 4 Carbon delivers incredible climbing traction on even the loosest tracks, while the short chainstays, spacious cockpit, and the incredibly stiff carbon chassis enable you to tackle uphill technical challenges you’ve never dreamed of cleaning. When descending, the Mach 4 Carbon reveals its trail-bike chops. With ultra-stable geometry, a low BB height, and 115mm* of dw-link™ suspension, you can unleash on technical features and square edge hits with confidence and speed.

FOX FACTORY SUSPENSION

Mach 4 Carbon is spec’d with the Fox Float DPS (Dual Piston System), tuned to provide pro-level, World Cup quality, pedaling performance and the bottomless feel of a longer travel bike without sacrificing efficiency. 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.

A TRAIL-READY RIDE

“Not just marketing hype, Pivot’s revamped Mach 4 Carbon does have the skills to redefine XC performance. An efficient climber, it left the field for dead on the descents and dominated the test. A well-deserved winner!”
– Enduro Magazine, Mach 4 Carbon wins Best in Test

The Mach 4 Carbon complete bikes are built with an ideal combination of components for riders seeking a fast, capable trail-ready bike. For riders seeking high performance, trail bike capability on technical terrain and high-speed descents, the sub-4 lb., 130mm travel Fox 34 embodies confidence and control. Additional complete bike highlights include Maxxis Ardent 2.35 tires and 740mm wide riser bars with shorter stems per size catering to a more trail oriented riding style.

COMPETITION-READY OPTIONS

The Mach 4 Carbon is a race-tested and proven choice. For competitive athletes, we offer the Mach 4 Carbon complete bikes with an optional XC Race package. This podium-ready build includes the very light 100mm Fox 32 Step Cast fork **, fast rolling Maxxis IKON 2.2” tires and a Phoenix Team Flat Carbon handlebar. For riders who seek to save every second, and whose primary purpose is cross-country racing, the XC Race package turns the Mach 4 Carbon into the fastest ride to the finish line.

ALL THE RIGHT DETAILS

The Mach 4 Carbon is available in five sizes to fit riders from 4’10” to 6’3”+ from Extra Small (XS) to Large (L) and Large (Long) options. Smaller stature riders will be happy to know that the XS frame fits a large waterbottle in the front triangle, sizes S-L all fit 2 large bottles in the front triangle. With the Mach 4 Carbon’s very low stand over height, riders seeking the a more trail bike oriented fit are able to go up a size and run a shorter stem – the resulting longer front-center is ideal in more technical terrain. The addition of the Large (Long) to the Mach 4 Carbon line-up enables a wider size range of riders to take advantage of this fit strategy.

Getting the gearing setup that works best for you is easy with the Mach 4 Carbon. It is both 1x and 2x compatible, and offers full Di2 electronic integration and easy, clean internal routing of shifters, brakes and droppers via the Pivot Cable Port system.

Other essential details include rubberized leather downtube and swingarm frame protection, 160mm rear post mount disc brake, and Enduro Max cartridge bearings throughout.

WOMEN & PIVOT:

The Mach 4 Carbon is offered in 5 sizes to fit a wide range of rider sizes and riding styles. At Pivot, we believe the bike should fit the rider, not the other way around. Our approach to rider-size-specific geometry relies on a balanced fit and adjusted geometry to maintain correct wheelbase length and handling to properly accommodate the proportions of a smaller rider. Our smaller sizes are built with shorter head tubes to create more stand-over height. This enables you to ride in a centered, athletic position with tons of clearance over the top tube – essential to descending and cornering with confidence and speed.

Size-specific carbon molds enable us to use smaller diameters and unique carbon layups for lighter frames while maintaining the same high strength in a more compact frame design. We can give you the same pedaling efficiency and stiffness experience as a rider of any size by engineering specifically for small and extra small frames. Additionally, for riders on our extra small bikes, lighter shock tuning and leverage rates enable us to set up the Mach 4 Carbon for a diverse range of rider weights and abilities.

Pivot complete bikes are also designed to intelligently address real-world rider differences, with the option to choose women’s specific saddle on any size and shorter cranks on our S and XS sizes.

PERFECT BIKES FROM PIVOT

Pivot complete bikes are more than the sum of their parts – every single component is selected to give you the best experience on the trail:

Tires: For each of our bikes, we include the best version of every Maxxis tire model for each application – choosing rubber compounds, tubeless and sidewall technologies that are perfect for your specific Pivot.

Cockpit: Custom designed Phoenix Components work as a system to enhance cockpit comfort and control on every Pivot bike. To learn more about how these components enhance the quality of your ride, see here.

Wheels: Wheels: All Pivot bikes include the best wheel technologies available from our partners. The Mach 4 Carbon complete bikes include choices from both DT Swiss and Stan’s, in high performance carbon and alloy rim options, wide internal rim widths, easy to set up and reliable tubeless systems, and quick engagement hubs for immediate engagement off the line.

Saddle: Pivot bikes feature WTB saddles that are specially made with the best, most durable, memory foam and feature a special hidden cutout for long ride comfort. The LES 2.75 complete bikes include rider’s choice of either the high performance Volt saddle or the Deva women’s saddle.

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 every ride on the Mach 4 Carbon exceeds your expectations.

*X-Small size features 100mm travel. See FAQ tab for more information.
** The Mach 4 Carbon frame is designed for 27.5” wheels with tires up to 2.6” wide, and the Fox 34 also fits tires up to 2.6” wide*. However, the FOX 32mm Step-Cast Fork is only designed to accept up to 2.3” tires. If you wish to run 2.6” tires on your LES 27.5, we recommend ordering your bike with our FOX 34mm fork option.

Mach 4 Carbon Features

  • 115mm travel dw-link® suspension with race and trail tuning*
  • Full carbon frame featuring Pivot exclusive hollow box internal molding technology
  • 27.5" wheels
  • Fits tires up to 2.6”
  • Available in either trail-oriented or XC racing-focused complete bike builds
  • Boost 148mm rear hub spacing
  • 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 starting under 22lbs (10kg)
  • 2 sets of bottle cage mounts
  • Ultra-quiet, low durometer rubberized frame 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

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 Height26.7027.0027.3027.8028.00
IWheelbase42.6743.1543.9444.6045.70
 Stack22.0522.8023.0323.5423.86
 Reach14.8815.3916.1016.6917.68

Values in inches    CM

Graphics, colors, and specifications are subject to change without prior notification.
MODELTEAM XTR Di2 2x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR Di2 11 Speed GS
FRONT DER XTR Di2 Side Swing
SHIFTERS XTR Di2 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face Next SL 34/24
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XTR M9000 11-40 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 9,499
MODELTEAM XTR Di2 1x XC Race Build
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 32 Factory Stepcast 27.5" 100mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR Di2 11 Speed GS
FRONT DER N/A
SHIFTERS XTR Di2 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face NEXT SL 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XT M8000 11-46 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ikon 27.5" x 2.2" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 8,799
MODELTEAM XTR Di2 1x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR Di2 11 Speed GS
FRONT DER N/A
SHIFTERS XTR Di2 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face NEXT SL 30T
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XT M8000 11-46 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 8,799
MODELTEAM XTR 2x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR 11 Speed GS
FRONT DER XTR E-Type Side Swing
SHIFTERS XTR 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face Next SL 34/24
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XTR M9000 11-40 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 8,299
MODELTEAM XTR 1x XC Race Build
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 32 Factory Stepcast 27.5" 100mm - 110mm
HEADSET FOX 32 Factory Stepcast 27.5" 100mm - 110mm
REAR DER XTR 11 Speed GS
FRONT DER N/A
SHIFTERS XTR 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face NEXT SL 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XT M8000 11-46 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ikon 27.5" x 2.2" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 7,799
MODELTEAM XTR 1x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR 11 Speed GS
FRONT DER N/A
SHIFTERS XTR 11 Speed
BRAKES XTR Trail M9020
CRANKS Race Face NEXT SL 30T
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XT M8000 11-46 11 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 7,799
MODELTEAM XX1 Eagle XC Race Build
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 32 Factory Stepcast 27.5" 100mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XX1 Eagle 12 Speed
FRONT DER N/A
SHIFTERS XX1 Eagle 12 Speed
BRAKES XX1 Guide Ultimate
CRANKS XX1 Eagle 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XX1 Eagle 10-50 12 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ikon 27.5" x 2.2" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 8,399
MODELTEAM XX1 Eagle
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XX1 Eagle 12 Speed
FRONT DER N/A
SHIFTERS XX1 Eagle 12 Speed
BRAKES XX1 Guide Ultimate
CRANKS XX1 Eagle 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Team Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Team
CASSETTE XX1 Eagle 10-50 12 Speed
WHEELS DT Swiss XMC 1200 - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 8,399
MODELPRO XO1 Eagle XC Race Build
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 32 Factory Stepcast 27.5" 100mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XO1 Eagle 12 Speed
FRONT DER N/A
SHIFTERS XO1 Eagle 12 Speed
BRAKES XT M8000
CRANKS XO1 Eagle 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Pro Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Pro
CASSETTE XO1 Eagle 10-50 12 Speed
WHEELS DT Swiss M1700 - 27.5"
WHEEL UPGRADE DT Swiss XMC 1200 - 27.5"
TIRES Maxxis Ikon 27.5" x 2.2" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 6,599
MODELPRO XO1 Eagle
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XO1 Eagle 12 Speed
FRONT DER N/A
SHIFTERS XO1 Eagle 12 Speed
BRAKES XT M8000
CRANKS XO1 Eagle 30T
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Pro Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Pro
CASSETTE XO1 Eagle 10-50 12 Speed
WHEELS DT Swiss M1700 - 27.5"
WHEEL UPGRADE DT Swiss XMC 1200 - 27.5"
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 6,599
MODELPRO XT/XTR 2x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR 11 Speed GS
FRONT DER XT Side Swing
SHIFTERS XT 11 Speed
BRAKES XT M8000
CRANKS XT 8000 34/24
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Pro Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Pro
CASSETTE XT M8000 11-42 11 Speed
WHEELS Stans 27.5 Crest MK3
WHEEL UPGRADE DT Swiss XMC 1200 - 27.5"
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 5,899
MODELPRO XT/XTR 1x XC Race Build
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 32 Factory Stepcast 27.5" 100mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR 11 Speed GS
FRONT DER N/A
SHIFTERS XT 11 Speed
BRAKES XT M8000
CRANKS Race Face Aeffect SL 30T
BAR Phoenix Team Flat Carbon 35mm - 760mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Pro Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Pro
CASSETTE XT M8000 11-42 11 Speed
WHEELS Stans 27.5 Crest MK3
WHEEL UPGRADE DT Swiss XMC 1200 - 27.5"
TIRES Maxxis Ikon 27.5" x 2.2" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 5,699
MODELPRO XT/XTR 1x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Factory 27.5" 130mm - 110mm
HEADSET Pivot Precision Sealed Cartridge
REAR DER XTR 11 Speed GS
FRONT DER N/A
SHIFTERS XT 11 Speed
BRAKES XT M8000
CRANKS Race Face Aeffect SL 30T
BAR Phoenix Team Carbon 35mm - 740mm
GRIPS Phoenix Team Padloc
STEM Phoenix Team XC
POST Phoenix Pro Carbon (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Pro
CASSETTE XT M8000 11-42 11 Speed
WHEELS Stans 27.5 Crest MK3
WHEEL UPGRADE DT Swiss XMC 1200 - 27.5"
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 5,699
MODELRACE XT 1x
FRAME Mach 4 Carbon
SHOCK Fox Float Factory DPS
FORK FOX 34 Performance 27.5" 130mm - 110mm
HEADSET Pivot Semi-Sealed Sealed Cartridge
REAR DER XT 11 Speed GS
FRONT DER N/A
SHIFTERS SLX 11 Speed
BRAKES Shimano M615
CRANKS Race Face Aeffect SL 30T
BAR Phoenix Race Aluminum 35mm - 750mm
GRIPS Phoenix Team Padloc
STEM Phoenix Race XC
POST Phoenix Race Aluminum (FOX Transfer upgrade available)
SEAT Phoenix WTB Volt Race
CASSETTE SLX M7000 11-46 11 Speed
WHEELS Sun Ringle Charger Comp - 27.5"
WHEEL UPGRADE N/A
TIRES Maxxis Ardent Race 27.5" x 2.35" TR
SIZE XS, SM, MD, LG, XL
MSRP$ 4,599
Graphics, colors, and specifications are subject to change without prior notification..

Product Reviews

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 measurement 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 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.

Can I use a dropper post with this frame?

Yes, internally dropper posts are compatible with the Mach 4 Carbon frame.

What dropper post length should I use on my Mach 4 Carbon?

The Mach 4 Carbon features a low stand-over height and short seat tubes to allow the use of longer travel dropper posts and/or more flexibility for a wider range of rider sizes.

There are some limitations that each dropper post can accommodate for each frame size based on the individual rider’s saddle height, so it is important to check fit before choosing the travel and model of dropper post for your Mach 4 Carbon. Use this guide to find the right post for your bike:

http://www.pivotcycles.com/wp-content/uploads/2017/06/Mach-4C-V2-Dropper-Fit-Guide.pdf

How do I set the sag on my Mach 4 Carbon?

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

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

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.

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

The Mach 4 Carbon uses the Boost 148mm X 12mm hub/wheel spacing. This is a hub design with wider flanges so you cannot take a current 135mm, 142mm, 150mm, or 157mm hub and change end caps to convert an existing hub.

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=132

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.

What front derailleur does the Mach 4 Carbon accept?

The Mach 4 Carbon, accepts a high DM (direct mount) side swing style front derailleur only. Shimano produces the side-swing front derailleur in Deore and SLX for 10 speed drivetrains and XT and XTR for 11 speed drivetrains.

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

We use the Maxxis Ardent Race 2.35 in our complete bike standard trail builds. The Mach 4 Carbon is designed to easily accept 2.35” tires and even up to 2.6” tires in some cases. For instance, a Maxxis Rekon 2.6” tire on a 35mm fits with good clearance. For other 2.6” 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 2.35, we suggest you check the fit with your chosen rim and tire combination to make sure it has proper clearance before riding. If you are running the XC Race version of our builds, it is important to note that the FOX 32 Step-Cast fork will only accept a maximum tire size of 2.3”

What cranks and bottom bracket will the Mach 4 Carbon accept?

The Mach 4 Carbon will accept all cranks designed for the BOOST system and compatible with a press fit 92mm bottom bracket. BOOST system means that the rear hub spacing is 148mm and the chain-rings have been shifted out approximately 3mm from where a tradition crank designed for a 142mm rear hub would be so that the chainrings will line up properly with the new position of the cassette on the 148mm rear hub

Can I run non-Boost™ cranks on my Mach 4 Carbon?

In some cases you can run a conventional non-BOOST 1X or 2X crank. The Race Face NEXT 1X and other Cinch system 1X cranks are dual compatible between standard 142mm and 148mm Boost rear ends. Some smaller chainring combination 1X (30 and 32T) Shimano XT and XTR 11 will also work. In some cases 2X standard cranks may also work with 24/34, 26/36 and 22/36 combinations. Shimano’s new 11 Speed XTR and XT standard cranks feature both 24/34 and 26/36 chainring options which work perfectly with the Mach 429SL frame as Shimano’s chainline dimensions already tend to run wider than others in the market. There may be other 2X non- boost cranks available that will work although it is dependent on specific chainline and chainring size. If the chainline is not out far enough, the front derailleur clearance may be tight when shifting into the small ring as the front derailleur mount on the Mach 4 Carbon is also shifted outwards to accommodate the BOOST design.

What bottom bracket is used on the Mach 4 Carbon?

The Mach 4 Carbon uses a Press Fit 92mm BB. Some bottom bracket manufacturers may refer to it as BB92 of PF92 as well. Every crank manufacture offers Press Fit 92mm BB options.

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

The Mach 4 will accept cranks with a standard Q factor measurement as low as 163mm. You cannot run cranks designed specifically with a narrower Q Factor such as XTR Race 158mm Q factor crank and the SRAM XX1 156Q crank.

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.

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 the Mach 4 standard trail builds with XC Race builds coming with the FOX Step Cast 32 100mm travel fork.

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.