SKU: 27814215906

Mach 4 SL Pro XT/XTR Factory Float (Carbon Wheels)

Sale price$3960.00 Regular price$4400.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Mach 4 SL Pro XT/XTR Factory Float (Carbon Wheels)Meet the all new Mach 4 SL; a podium seeking missile crafted from the ground up as a testament to speed without compromise. It is designed to win gold and slaughter KOMs, and do so while delivering an otherworldly ride quality, telepathic handling, and a potent blend of acceleration and tractability. Thanks to the continuing evolution of our proprietary Hollow Core carbon fiber construction, the new Mach 4SL carves an impressive 280 grams out of the

Meet the all new Mach 4 SL; a podium seeking missile crafted from the ground up as a testament to speed without compromise. It is designed to win gold and slaughter KOMs, and do so while delivering an otherworldly ride quality, telepathic handling, and a potent blend of acceleration and tractability.

Thanks to the continuing evolution of our proprietary Hollow Core carbon fiber construction, the new Mach 4SL carves an impressive 280 grams out of the previous generation Mach 4SL. This impressive absence of mass was achieved while improving on our excellent performing dw-link suspension, and without sacrificing strength, frame stiffness or handling integrity. 

The Pivot Mach 4 SL V3 29 Team XX Eagle World Cup is designed with uncompromising performance in mind. Featuring a potent blend of acceleration and tractability, this bike offers an otherworldly ride quality and telepathic handling without sacrificing suspension quality, handling integrity, frame durability, traction, and comfort. This is the perfect choice for XC racers seeking speed without compromise.

We’ve tweaked our acclaimed dw-Link suspension to deliver the immediate acceleration and responsiveness that racers crave, but also to serve up better, more tractable performance across the entire ride spectrum. The kinematics are tailored for pedaling efficiency and outright speed without sacrificing comfort or compliance. This is highly evolved, thoroughly refined suspension, not some compromised band-aid. The Mach 4SL brings the heat, but also vastly improves upon the current notion of race bike tractability and suspension performance. Think of it as the fun way to the top step of the podium.

Lighter, faster, more capable everywhere. That’s the Mach 4SL in a nutshell. Our design brief was “World Cup focus, but let it punch above its weight”. So we gave it some more reach, steepened the seat angle, backed off the head angle, opened up the wheelbase, and built a bike that can handle serious speed with total composure. This, combined with the flex-free integrity of the Mach 4 SL’s chassis, encourages full-on red-mist hammering without any sketchy side effects. It’s a race bike first and foremost, but it’s a hell of a fun party on the way to the checkered flag.

The Mach 4SL is as versatile as it is speedy. The World Cup build can yield 95mm or 103mm of rear travel, easily adjusted by a flip chip on the rocker. The Trail build, aimed at squeezing as much fun as humanly possible out of a ride while going really really fast, delivers either 106 or 115mm of rear travel thanks to a brand new FOX Float rear shock. There’s tire clearance for 2.4” rubber, and room for two water bottles. Short track domination? World Cup dreams? Marathon Mindset? Singletrack shredding? Yes. Do it all.

FEATURES:

  • New XC Adapted Travel, Adjustable Flip-Chip: A New Travel-Adjustable Flip-Chip on all builds. The World Cup builds yield either 95mm or 103mm of rear travel with an ultralight FOX DPS rear shock and easily adjustable flip-chip on the rocker.|Team, Pro, and Ride builds yield either 106mm or 115mm of rear travel from the FOX Float rear shock and easily adjustable flip-chip on the rocker
  • DW-Link: Patented position-sensitive anti-squat eliminates pedal bob during hard pedaling efforts. Improved traction and versatility in a variety of conditions. Superior pedaling performance without sacrificing braking or suspension feel.
  • Vertical Shock Layout: The vertical shock layout allows for a more compact frame design and lower overall center of gravity. It is stiffer, lighter, and enables us to better optimize suspension kinematics independent of the shock mounting location. The result is a frame that’s lighter and stifferin all the right places with excellent water bottle clearance and full control over stand-overheight just to add to the benefits.
  • An XC Dream: Featherlight carbon frame. The new Mach 4SL carves an impressive 300-400 grams (.65-.9lbs) out of the previous generation. • Small frame weight w/o rear shock: 1660 grams (3.65lbs).• Small frame with rear shock (DPS): 1930 grams (4.25lbs).• Complete bike weight under 23lbs (Size small, XX World Cup build).
  • Proprietary Ride Tuning: Fits riders 4’10” to 6’7” with size range X-Small through X-Large. Lighter shock valving on X-Small and Small frame sizes. Independent strength to weight analysis for each frame achieves consistent performance metrics. Custom-tuned carbon scales stiffness across all sizes, ensuring optimal ride characteristics for all rider profiles
  • Water Bottle ClearanceAll sizes fit a large water bottle inside the frame. Clearance for two water bottles on MD-XL

SPECS:

Frame Mach 4 SL
Fork Fox Factory Stepcast 34 29”, 44mm offset, FIT4 - 120mm 
Rear Shock Fox Factory Float | 190x45 w/ Sram TwistLoc (Shock only)
Rims/Wheels Reynolds Blacklabel 309/289 XC
Hubs Industry Nine Hydra hubs ” | 15x110
F/12x148 R
Spokes N/A
Tires Maxxis Rekon Race 29” x 2.4” TR, EXO, 120 TPI | F & R
Crankset Race Face Æffect R
Chainrings 34t
Bottom Bracket
Shimano
Chain Shimano CN-M8100 12-Speed
Rear Derailleur Shimano XTR M9100 SGS 12-Speed
Cassette/Rear Cogs
Shimano XT M8100 10-51t
Shifters Shimano XT M8100 ISPEC EV 12-Speed
Handlebars Phoenix Team Flat Carbon - 760mm
Grips Sram TwistLoc
Stem Phoenix Team XC/Trail
Brakes Shimano XT M8100 2-piston w/ Shimano XT CenterLock - 160mm 
Pedals Sold Separately
Saddle Phoenix WTB Pro Volt (Narrow Width)
Seat Post Fox Transfer Factory Series 125mm (XS-SM), 150mm (MD-LG), 175mm (XL)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27814215906

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4.8 ★★★★★
Based on 19 reviews
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Verified Purchase
Joey B
Bozeman, US
★★★★★ 5
Actually, better than I expected!
Size: Medium, Unit Count: 4
These are better than what I was expecting based on the reviews. I do put them on carefully because someone said you can’t tear them so I’m careful putting them on, but they almost don’t feel like you’re wearing anything as long as you don’t put them too tight on your toes. I can put lotion on my feet and I know it has to soak in because there’s no place else for it to go like socks or my bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
C
Verified Purchase
Carmen Pinto
Belleville, US
★★★★★ 5
Moisturing
Size: Medium, Unit Count: 4
The silicone socks are nice, they help my dry heels. I will warn you don't walk with them I got up in the middle of the night and tore one pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Verified Purchase
Samantha Frazier
Birmingham, US
★★★★★ 3
So so...
Size: Medium, Unit Count: 2
They do what they advertised. You can NOT walk in them you will stretch them and pop a hole in them. You cannot sleep in them unless your going to wear larger cotton socks with them to keep them in place. They are easy to wash and dry which is nice. I will need to buy another pair. Great if your gonna watch a movie or binge TV in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
M
Verified Purchase
Monica Zamora Barragan
Bozeman, US
★★★★★ 5
Great for dry feet or to help lock in moisturizer or medication
Size: Medium, Unit Count: 2, Size: Medium, Unit Count: 2
They’re stretchy and don’t feel goopy, I use them daily and they’re working great they keep my feet nice and hydrated and soft. I’ve been using them along with lotion to help hydrate my skin so they aren’t rough during the winter. They are comfy and if you must get up they’re grippy and don’t slip or slide they stay put. They’re super easy to put on and take off.
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Reviewed in the United States on January 25, 2026
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Verified Purchase
Deborah R
Carnegie, US
★★★★★ 4
Comfort
Size: Medium, Unit Count: 4
Easy to put on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

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