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Mach 5.5 Carbon

The Ultimate Trail Bike

The Mach 5.5 Carbon builds on the legacy of our renowned Mach 5.7 Carbon as the quintessential trail bike. With 140mm of dw-link™ rear travel, it sticks to and claws up just about anything, with unparalleled pedaling efficiency. On descents, the Mach 5.5 Carbon’s incredible square edge bump performance and 160mm travel Fox 36 fork enables you to conquer terrain that makes other bikes cower. It’s a bike that inspires you to climb while looking forward to the descents and that begs you to push your limits while putting a smile on your face.

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140mm

Rear Travel

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27.5"

Wheel Size

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Carbon

Material

Ultra Light. Ultra Strong.

Weight matters…and so does strength. The Mach 5.5 Carbon matches Mach 6 Carbon durability while achieving Mach 429 SL Carbon weights. The result is the perfect balance of frame stiffness and ride feel. The frame’s carbon structure features our proprietary hollow core internal molding process combined with a highly optimized lay-up design, utilizing lighter weight, high modulus materials that save up to a pound (.45kg) over other trail and enduro bike designs. The Mach 5.5 Carbon is available as a complete bike, with builds weighing under 27lbs (12.2kg) complete with dropper, and with frame weights as low as 5.2lbs (2.35kg).

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Ultra Capable.

The Mach 5.5 Carbon’s well-balanced geometry makes it the ultimate trail bike weapon. We combined a long and low cockpit with a 66.5-degree head angle for high-speed stability and amazing downhill performance. The bike’s short (430mm) chainstays and relatively steep seat angle help it rail the tightest corners and absolutely crush the steepest climbs.

We’ve also evolved our mid-travel link design. By utilizing the same rear-shock pivot cartridge-bearing design found in our longer-travel models (such as the Firebird and Phoenix), we’ve given the Mach 5.5 Carbon the unmatched, small-bump compliance and traction that Pivot is known for—in a lighter weight and more compact design.

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Build Your Mach 5.5 Carbon

We strive to build the best-performing cycling products in the world.

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Starting at

$6,699.00

Graphics, colors, and specifications are subject to change without prior notification.
KITPro XT/XTR - 27.5"Pro X01 - 27.5"Pro X01 w/ Fox Live Valve - 27.5"Pro XT/XTR w/ Fox Live Valve - 27.5"Team XTR - 27.5"Team XTR w/ Fox Live Valve - 27.5"Team XX1 AXS - 27.5"Team XX1 AXS w/ Fox Live Valve - 27.5"Race XT - 27.5"Race X01 - 27.5"Frame KitFrameFrame Kit w/ Fox Live Valve - 27.5"
Availability-------------
STARTING PRICE$6,699.00 USD$7,199.00 USD$9,099.00 USD$8,599.00 USD$8,899.00 USD$10,799.00 USD$10,299.00 USD$12,199.00 USD$5,499.00 USD$5,799.00 USD$4,599.00 USD$3,499.00 USD$6,599.00 USD
FRAMEMach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5Mach 5.5
Weight
MATERIALCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbonCarbon
WHEEL SIZE27.5"27.5"27.5"27.5"27.5"27.5"27.5"27.5"27.5"27.5"NoneNone27.5"
REAR SHOCKFox Factory Float DPX2Fox Factory Float DPX2Fox Factory Live ValveFox Factory Live ValveFox Factory Float DPX2Fox Factory Live ValveFox Factory Float DPX2Fox Factory Live ValveFox Performance Float DPSFox Performance Float DPSFox Factory Float DPX2Fox Factory Float DPX2Fox Factory Live Valve
FORKFox Factory 36 27.5", 44mm offset, FIT4 - 160mmFox Factory 36 27.5", 44mm offset, FIT4 - 160mmFox Factory Live 36 27.5", 44mm offset, FIT LIVE - 160mmFox Factory Live 36 27.5", 44mm offset, FIT LIVE - 160mmFox Factory 36 27.5", 44mm offset, FIT4 - 160mmFox Factory Live 36 27.5", 44mm offset, FIT LIVE - 160mmFox Factory 36 27.5", 44mm offset, FIT4 - 160mmFox Factory Live 36 27.5", 44mm offset, FIT LIVE - 160mmFox Performance 36 27.5", 44mm offset, GRIP - 160mmFox Performance 36 27.5", 44mm offset, GRIP - 160mmFox Factory 36 27.5", 44mm offset, FIT4 - 160mmFox Factory Live 36 27.5", 44mm offset, FIT LIVE - 160mm
HEADSETPivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed CartridgePivot Semi-Sealed CartridgePivot Semi-Sealed CartridgePivot Precision Sealed CartridgePivot Precision Sealed Cartridge
REAR DERShimano XTR M9100 SGS 12-SpeedSram X01 Eagle 12-SpeedSram X01 Eagle 12-SpeedShimano XTR M9100 SGS 12-SpeedShimano XTR M9100 SGS 12-SpeedShimano XTR M9100 SGS 12-SpeedSram XX1 Eagle AXS 12-SpeedSram XX1 Eagle AXS 12-SpeedShimano XT M8100 SGS 12-SpeedSram X01 Eagle 12-Speed
SHIFTERShimano XT M8100 ISPEC EV 12-SpeedSram X01 Eagle 12-SpeedSram X01 Eagle 12-SpeedShimano XT M8100 ISPEC EV 12-SpeedShimano XTR M9100 ISPEC EV 12-SpeedShimano XTR M9100 ISPEC EV 12-SpeedSram XX1 Eagle AXS 12-SpeedSram XX1 Eagle AXS 12-SpeedShimano SLX M7100 ISPEC EV 12-SpeedSram GX Eagle 12-Speed
BRAKESShimano XT M8120 4-pistonSram G2 RSC 4-pistonSram G2 RSC 4-pistonShimano XT M8120 4-pistonShimano XTR M9120 4-pistonShimano XTR M9120 4-pistonSram G2 Ultimate 4-pistonSram G2 Ultimate 4-pistonShimano SLX M7120 4-pistonSram Guide RE 4-piston
CRANKSETRace Face Æffect R 32tSram X01 Eagle DUB 32tSram X01 Eagle DUB 32tRace Face Æffect R 32tRace Face Next R 32tRace Face Next R 32tSram XX1 Eagle DUB SL 32tSram XX1 Eagle DUB SL 32tRace Face Ride 32tSram Descendant 7k Eagle DUB 32t
HANDLEBARPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Team Low Rise Carbon - 760mmPhoenix Race Low Rise Aluminum - 780mmPhoenix Race Low Rise Aluminum - 780mm
GRIPSPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-OnPhoenix Factory Lock-On
STEMPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/TrailPhoenix Team Enduro/Trail
SEATPOSTFox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Factory Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Rock Shox Reverb AXS 100mm (XS), 125mm (SM), 150mm (MD-XL)Rock Shox Reverb AXS 100mm (XS), 125mm (SM), 150mm (MD-XL)Fox Transfer Performance Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)Fox Transfer Performance Series 100mm (XS), 125mm (SM), 150mm (MD-LG), 175mm (XL)
SADDLEPhoenix WTB Pro High Tail Trail (XS, SM), Phoenix WTB Pro Vigo (MD-XL)Phoenix WTB Pro High Tail Trail (XS, SM), Phoenix WTB Pro Vigo (MD-XL)Phoenix WTB Pro High Tail Trail (XS, SM), Phoenix WTB Pro Vigo (MD-XL)Phoenix WTB Pro High Tail Trail (XS, SM), Phoenix WTB Pro Vigo (MD-XL)Phoenix WTB Team High Tail Trail (XS, SM), Phoenix WTB Team Vigo (MD-XL)Phoenix WTB Team High Tail Trail (XS, SM), Phoenix WTB Team Vigo (MD-XL)Phoenix WTB Team High Tail Trail (XS, SM), Phoenix WTB Team Vigo (MD-XL)Phoenix WTB Team High Tail Trail (XS, SM), Phoenix WTB Team Vigo (MD-XL)Phoenix WTB Race High Tail Trail (XS, SM), Phoenix WTB Race Vigo (MD-XL)Phoenix WTB Race High Tail Trail (XS, SM), Phoenix WTB Race Vigo (MD-XL)
CASSETTEShimano XT M8100 10-51tSram XG-1275 10-52tSram XG-1275 10-52tShimano XT M8100 10-51tShimano XTR M9100 10-51tShimano XTR M9100 10-51tSram XG-1299 10-52tSram XG-1299 10-52tShimano SLX M7100 10-51tSram XG-1275 10-52t
WHEELSDT Swiss M1700 w/ DT Swiss 350 hub & 36t Star Ratchet 30mm - 27.5"DT Swiss M1700 w/ DT Swiss 350 hub & 36t Star Ratchet 30mm - 27.5"DT Swiss M1700 w/ DT Swiss 350 hub & 36t Star Ratchet 30mm - 27.5"DT Swiss M1700 w/ DT Swiss 350 hub & 36t Star Ratchet 30mm - 27.5"Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"DT Swiss M1900 w/ DT Swiss 370 hub, 30mm - 27.5”DT Swiss M1900 w/ DT Swiss 370 hub, 30mm - 27.5”
WHEEL UPGRADESReynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"
ADD $1,300 MSRP
Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"
ADD $1,300 MSRP
Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"
ADD $1,300 MSRP
Reynolds Blacklabel Enduro Wide Trail w/ Industry Nine hub, 34mm - 27.5"
ADD $1,300 MSRP
TIRESMaxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
Maxxis Minion DHF 27.5" x 2.6" TR, EXO
Maxxis Rekon 27.5" x 2.6" TR, EXO
ROTORShimano XT CenterLock - 180mm
Shimano XT CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Shimano XT CenterLock - 180mm
Shimano XT CenterLock - 180mm
Shimano XTR CenterLock - 180mm
Shimano XTR CenterLock - 180mm
Shimano XTR CenterLock - 180mm
Shimano XTR CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Sram Centerline CenterLock - 180mm
Shimano SLX 6-bolt - 180mm
Shimano SLX 6-bolt - 180mm
Sram Centerline 6-bolt - 180mm
Sram Centerline 6-bolt - 180mm
CHAINShimano CN-M8100 12-SpeedSram X01 Eagle 12-SpeedSram X01 Eagle 12-SpeedShimano CN-M8100 12-SpeedShimano CN-M9100 12-SpeedShimano CN-M9100 12-SpeedSram XX1 Eagle 12-SpeedSram XX1 Eagle 12-SpeedShimano CN-M7100 12-SpeedSram GX Eagle 12-Speed

Quality Craftsmanship

We strive to build the best-performing cycling products in the world.

Part 1
Part 2
Part 3
Part 4
Part 5
Part 6

Geometry & Sizing

We strive to build the best-performing cycling products in the world.

Geometry image

REVIEWS

Read the latest on the Mach 5.5 Carbon.

Engineer's Corner

Get everything you need to know about the bikename.

140mm of supple-yet-efficient dw‐link® suspension

Equipped with a burly Fox 36 160mm-travel fork

27.5” wheels with extra clearance for up to 2.6” tires

Long and low geometry for a confident, stable stance

Short 430mm (16.9”) chainstays for snappy cornering

12 x 148mm Boost rear spacing for additional stiffness and control

Every size clears a full size water bottle inside the front triangle

Hassle-free, full-length, internal cable routing, fully Di2 compatible

Front derailleur compatible

Fits nearly all riders (everyone between 4'11" and 6'7"+)

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: 4'11" – 5'4"

Small: 5'4" – 5'8"

Medium: 5'8" – 5'11"

Large: 5'11" – 6'3'

X-Large: 6'2" +

We suggest that you pick your Mach 5.5 Carbon size based on your riding style. The Mach 5.5 Carbon features trail bike long and low geometry with both shorter seat tube and head tube measurements per size – this geometry means that most riders can go up or down a size and should base their choice on riding-style, reach and stem length preferences.

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

Variables in frame size, discrepancies in scale calibrations, and method of weighing (with or without pedals and such) all lead to inaccurate comparisons, so we choose not to publish our bike weights. Pivot bicycles are among the lightest available, but the weight is only one of many factors that make a great bicycle. Other aspects such as frame stiffness, strength, durability, and ride quality are just as important as weight to our engineers when designing our Hollow Core Carbon and aluminum frames. Instead of comparing grams online, we suggest you visit your local Pivot dealer and see our attention to detail, smart, high value spec, and class leading features. Bring a scale if you’d like, but take just one demo ride and you’ll feel why Pivot Cycles are the most well-rounded, highest performing bicycles on the market and in many cases, yes, it’s the lightest as well.

Yes, internally routed dropper posts are compatible with the Mach 5.5 Carbon.

There are limitations that each dropper post have for each frame size based on the rider’s saddle height, so it is important to check fit before choosing the travel and model of dropper post for your Mach 5.5 Carbon. Use the Dropper Fit Guide under the Tech Specs section to help identify the right post length.

Yes, this frame features two sets of water bottle mounts on the small to extra large frame sizes. One mount is inside the front triangle and the other is underneath the down tube. Every size clears a full size water bottle inside the front triangle.

The Mach 5.5 Carbon uses Boost 148mm x 12mm hub/wheel spacing. This hub design has wider flanges, so you cannot change the end caps to convert an existing 135mm, 142mm, 150mm, or 157mm hub.

27.5” only

We use a 1.5 thread pitch on the rear thru axle. You can order one through our online store.

You can fit 27.5” tires up to 2.6” inches.

30.9mm

XS - 195mm

S - 225mm

M - 255mm

L - 280mm

XL - 280mm

*Please check seat post measurements carefully before installing the post.

34.9mm (or 35mm as some manufacturers call it)

An e-type side-swing style front derailleur - Shimano produces the e-type side-swing front derailleur in Deore & SLX for 10-speed drivetrains and XT & XTR for 11-speed drivetrains.

All cranks designed for the Boost system and use a Pressfit BB92 bottom bracket will work on your Mach 5.5 Carbon. 

You can use non-Boost:

Race Face Next SL 1x cranks
Shimano XT and XTR 1x11 cranks (with 30t or 32t)
Shimano XT and XTR 2x11 cranks (with 24t/34t or 26t/36t)

There may be other 2x non-Boost cranksets available that will work, thought it will depend on the chainline and chainring size. If the chainline is not out far enough, the front derailleur clearance may be tight when shifting in to the small ring – the front derailleur mount has been shifted outwards to accommodate the Boost design.

 

163mm

Yes. The Mach 5.5 Carbon features ISCG05 mounts on the frame. Most upper guides on the market will fit or some of the more compact versions that attach to an E-Type front derailleur mount will also work. For full upper and lower guides, we recommend the MRP AMG.

Zero stack (ZS) 44mm top and ZS 56mm bottom (or a Chris King Inset 2)

180mm

No rear brake adapter is needed for a 180mm rotor.

The Mach 5.5 Carbon was designed for fork lengths between 150mm-160mm.

 

44mm

Eye to eye: 7.875”

Stroke: 2”

You’ll need the proper shock mounting hardware. For the front of the shock, the hardware is 8mm x 36mm. There is no hardware on the rear of the shock, the spacer hardware and bushing will need to be removed as the rocker mounts directly to the shock body. Some shocks may have a different spec then the Fox shock that comes on the bike and may not fit properly. Also, as we cannot test every shock on the market, therefore riders assume some risk if they choose a shock that does not fit properly or is not tuned correctly for the bike. The frame is designed around a large volume air can with medium compression valving and medium rebound damping.

 

Yes, as long as you order the correct eyelet size (15mm).

No, this bike was designed to work with the progressiveness of an air spring. A coil-over shock (even one with separate bottoming control) does not offer the progressive spring curve that the Mach 5.5 Carbon requires. Running a coil-over shock will result in hard bottoming and damage to the frame.

A detailed PDF of the torque specs can be found in the Tech Specs section. 

Have some questions about using Fox Live Valve on your Mach 5.5 Carbon? We are here to help.

You set sag just as you would on regular suspension but with the Live Valve system turned off, so you get accurate readings. 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

Battery life is highly dependent on Live Valve settings and terrain. Average life ranges between 16 and 20 hours. For most riders, that covers several weeks of riding.  

Charge times range between 1.5 and 2 hours depending on the power source. If you forget to charge the system before a ride it only takes 15 minutes to get enough power for a 2-hour ride.

The Live battery can be charged on or off the bike and is charged using a standard micro-USB cable.

When the system detects a low battery it goes into open mode and shuts down.

Yes. Riding Live Valve powered off is just like riding your bike with the suspension in the open mode. Pivot’s awesome dw-link suspension always offers class-leading performance with the system on or off.

No. the Live Valve system requires an accelerometer integrated near the rear axle, system mounting, and suspension tuning specific to the bike design.   

Yes, within reason. Things like washing your bike, riding in the rain or normal puddles and small water crossings are fine. We do not recommend total submersion or a direct blast of water from a pressure washer – both could push water past seals and compromise the electronic system.

If you forget to turn the system off, Live Valve shuts off automatically if motion is not sensed for 1.5 hours. However, it is best to turn it off manually for battery charge preservation.

Yes, all Mach 5.5 frames are fully compatible, and Fox offers a complete preprogrammed system that is specific to the Mach 5.5. Please see your authorized Pivot dealer for information.  

Chris Cocalis is here to take you through the steps...