Pivot Mach 4 SL

96/100
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Facts

Gender
Release Year
Brand
Wheel Size
Number of Gears
Gearing Type
Weight
22.9, 24, 24.9 lb
Suspension
Brake Type
Frame Material

Summary of Reviews

We have read all expert and user reviews on the Pivot Mach 4 SL. In summary, this is what cyclists think.

16 reasons to buy

  • The Pivot Mach 4 SL comes in four tiers (Ride, Pro, Team, World Cup) and 12 builds.
  • The race-ready World Cup builds run forks with 100mm travel; the “plusher” standard Mach 4 runs 120mm up front.
  • A “travel-adjustable flip-chip” allows riders to set rear travel to 106mm or 115mm (Ride, Pro, Team) and 95mm or 103mm (World Cup).
  • Sizing ranges from XS to XL for riders between 4’10” and 6’7”.
  • Reviewers praise the Mach 4 SL’s "dialed" geometry, which boosts confidence and “thrives” on technical XC courses.
  • Pivot uses size-specific rear shock tuning and carbon layup for the frame.
  • Testers laud the effectiveness of the rear travel flip-chip adjustment to positively impact the bike’s capability.
  • Experts say the DW-link suspension delivers “exceptional” pedaling efficiency, traction, and support on both ascents and descents.
  • According to reviewers, the Mach 4 SL is “fast” on diverse trails and excels as a “speedy” climber.
  • Experts relish the Mach 4 SL's stable yet playful nature.
  • Testers highlight the short chainstays, which increase agility for navigating tight, technical terrain.
  • The low top tube provides ample standover clearance and “freedom” of movement on descents.
  • The Mach 4’s ride position is deemed more “comfortable” than some competitors, with sufficient room for adjusting handlebar height.
  • All sizes can accommodate one large water bottle; M, L, and XL frames fit two.
  • The included clip-on sag indicator is a “brilliant aid” for setting up the rear suspension.
  • Pivot provides a ten-year frame warranty with the Mach 4 SL.

8 reasons not to buy

  • The Pivot Mach 4 SL is expensive.
  • Experts feel the 160mm brake rotors are undersized for heavy riders or long, steep descents.
  • Reviewers note the light front end tends to lift off the ground on steep climbs.
  • The TwistLoc remote's "bulky" design pushes the left brake lever inward and contributes to a "crowded" cockpit.
  • Multiple testers find the Phoenix WTB World Cup Volt and WTB Volt saddles uncomfortable.
  • One reviewer feels the suspension fork doesn’t offer enough mid-stroke support.
  • The dual-link Mach 4 SL frameset is heavier than competing single-pivot XC race bikes.
  • Experts say the “puny” 2.4” Maxxis Rekon Race tires (Pro, Team, World Cup) “quickly reach their limits in muddy conditions.”

Bottom line

The Pivot Mach 4 SL is a full-suspension XC mountain bike available in four tiers, 12 build kits, and SRAM or Shimano components. The race-ready World Cup builds have 100mm fork travel; the standard builds have 120mm forks. All builds have adjustable rear travel via a flip-chip, which reviewers highlight as effectively making the Mach 4 SL two bikes in one. Experts praise this “fantastic” bike for its pedaling efficiency, “rocket-like” speed on climbs, “capable” descending, and “snappy” yet “forgiving” handling. While the high price makes the Mach 4 SL an exclusive bike, it earns its keep with “seriously premium” performance.

Expert Reviews

91/100 based on 3 rated expert reviews
92
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This review has been given a score. Read more here
Flow Mountain Bike

2023 Pivot Mach 4 SL Review | Pivot’s Premium XC Bike Gets a Lot Lighter & More Adjustable

The new Pivot Mach 4 SL is almost 20% lighter than its predecessor while being more versatile and capable overall.

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90
Bike Perfect

Pivot Mach 4 SL Team Eagle XX First Ride Review – The New Benchmark for XC/Marathon Racers?

A completely revised frame provides travel adjustment, significant weight reduction, and a confidence-boosting ride quality.

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90
?
This review has been given a score. Read more here

Review: The Pivot Mach SL 4 Blends XC Speed & Comfort

… I tackled relentless climbs and technical descents with the same degree of ease, and had a lot of fun doing it.

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David Arthur - Just Ride Bikes

Here’s Why I Love the 2023 Pivot Mach 4 SL

… this bike is all I want from a mountain bike these days – short on travel and low on weight, but big on capability, and big on fun… just a fantastic bike.

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MTB yumyum

2023 Pivot Mach 4 SL Test Ride & Review

… you really do have two bikes in one that is shockingly good.

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El Roo Bike

Is the New Pivot Mach 4 SL the New XC Goat?

I loved it! It is more efficient than my [Trail] 429… big time.

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ENDURO Mountainbike Magazine

2023 Pivot Mach 4 SL XTR XC vs. DC Version – One Frame, Two Bikes?

… the short-travel variant is direct, efficient, and lively uphill, but feels stiffer and slightly more nervous downhill. The long-travel version, on the other hand, stays behind uphill but is much plusher on the trail…

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First Ride: Pivot’s Third Generation Mach 4 SL

… the Mach 4 SL is a truly lightweight cross-country bike with true suspension performance.

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Singletracks

The New Pivot Mach 4 SL Review: A Lighter and More Capable XC Bike

The Mach 4 SL is a bike that is as comfortable slicing through descents as it is burning up a climb.

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First Ride – 2023 Pivot Mach 4 SL

It’s safe to say that this bike is poised to redefine what’s possible in the realm of cross-country performance.

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The Radavist

Flexing Muscles, Not Stays: A Pivot Mach 4 SL Review

If blasting up technical climbs is the Mach 4’s bread, and fast-flowing descents are its butter, all-day adventure rides are the ice cream for dessert.

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First Ride! New Pivot Mach 4 SL Makes XC Way More Fun

I’ve never felt a bike change so dramatically with such a simple adjustment.

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Pivot Mach 4 SL Team XX SL Review

… Pivot has done a great job here.

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Gear Patrol

Pivot Mach 4 SL Review: This Revised Cross-Country Bike Is Lighter and Faster, but Still Capable

The cross-country race bike is noticeably lighter and more efficient, while maintaining its ability to handle a variety of surfaces and trails.

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The Lunch Ride

Special: Pivot Mach 4SL XC Mountain Bike

Like the prior model, this bike is a rocket, but with the added bonus of more travel.

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Mountain Bike Action

Pivot Mach 4 SL Review – The Fun Way to the Podium

… a cross-country bike that lives up to their claim that it can “punch above its weight class.”

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User Ratings

0/100 based on 0 ratings
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Rankings

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Bike Comparison

Pivot Mach 4 SL in comparison to averages

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