High Performance Full Suspension Bike for Trail and Enduro

Pivot Mach 4 SL Pro XT/XTR Factory Float – Ice Blue

The Pivot Mach 4 SL Pro XT/XTR Factory Float – Ice Blue is a premium full-suspension 29-inch cross-country mountain bike built for riders who want race-level efficiency, precise handling, and high-end suspension performance.

At the heart of the bike is Pivot's lightweight Hollow Core carbon Mach 4 SL frame, paired with the company's efficient DW-Link suspension system. A FOX Factory suspension package, Shimano XT/XTR 12-speed drivetrain, FOX Transfer Factory dropper, and lightweight carbon wheelset complete a build designed to climb efficiently while remaining composed on technical XC terrain.

The Mach 4 SL Gen 3 platform is rated around 95–115 mm of rear travel and 100–120 mm of front travel, depending on the configuration. This Pro XT/XTR build uses a 120 mm FOX Factory Step-Cast 34 fork and FOX Factory Float rear shock with 95 mm of rear travel.

Key Features

• Lightweight Hollow Core carbon Mach 4 SL frame

• Pivot DW-Link suspension

• 29-inch wheels

• 120 mm front suspension

• 95 mm rear suspension

• FOX Factory Step-Cast 34 fork

• FOX Factory Float rear shock

• Shimano XTR M9100 / XT M8100 12-speed drivetrain

• Race Face Æffect R 34T crankset

• Shimano XT 10–51T cassette

• FOX Transfer Factory dropper seatpost

• Reynolds Blacklabel carbon XC wheelset

• Industry Nine Hydra hubs

• Maxxis Ardent Race tires

• Phoenix Team carbon cockpit

• Internal cable routing

• Large water-bottle clearance

• Ice Blue finish

Lightweight Hollow Core Carbon Frame

The Mach 4 SL is built around Pivot's Hollow Core carbon construction, giving the chassis a high stiffness-to-weight ratio suited to competitive XC riding.

The Gen 3 Mach 4 SL was developed to be significantly lighter than its predecessor while increasing its versatility. Pivot combines the carbon frame with size-specific tuning and its DW-Link suspension to produce a bike that responds quickly to pedal input while maintaining rear-wheel traction on uneven terrain.

The frame also incorporates internal cable routing, molded frame protection, modern axle standards, and generous bottle clearance.

DW-Link Suspension

Pivot's DW-Link suspension platform is designed to keep the Mach 4 SL efficient under pedaling while allowing the rear wheel to remain active over roots, rocks, and other trail obstacles.

For this configuration, the FOX Factory Float rear shock provides 95 mm of rear travel, while the front suspension provides 120 mm. The result is a balanced XC setup that favors efficient climbing without turning technical descents into an afterthought.

The Mach 4 SL frame itself supports multiple travel configurations, which is why specifications for the platform may show a broader 95–115 mm rear and 100–120 mm front range.

FOX Factory Step-Cast 34 Fork

The front suspension is handled by a FOX Factory Step-Cast 34 29-inch fork with:

• 120 mm travel

• 44 mm offset

• Air spring

• 29-inch wheel compatibility

The documented 2024 carbon-wheel configuration uses the GRIP SL damper, while other model-year listings specify FIT4. The fork's Step-Cast chassis keeps weight low while providing the stiffness and control needed for modern technical XC courses.

FOX Factory Float Rear Shock

A FOX Factory Float rear shock controls the 95 mm rear suspension.

Working together with the DW-Link suspension design, the shock is tuned to provide efficient pedaling and controlled suspension movement. Riders can adjust the air pressure and rebound settings to match their weight and riding conditions.

Shimano XT/XTR 12-Speed Drivetrain

The Pro XT/XTR build combines Shimano's proven XT and XTR components into a lightweight mechanical 1x12 drivetrain.

The Shimano XTR M9100 SGS rear derailleur provides the premium shifting component, while the XT M8100 shifter and cassette deliver a broad gear range for both climbing and faster trail sections.

Drivetrain Components

• Shimano XTR M9100 SGS 12-speed rear derailleur

• Shimano XT M8100 I-SPEC EV 12-speed shifter

• Race Face Æffect R 34T crankset

• Shimano XT M8100 10–51T cassette

• Shimano CN-M8100 12-speed chain

• 1x12 drivetrain

The 10–51T cassette gives the bike a wide climbing range while retaining useful high gears for fast XC riding.

Hydraulic Disc Brakes

Brake equipment varies by model year.

The earlier Pro XT/XTR specification was documented with Shimano XT M8100 two-piston hydraulic brakes and 160 mm rotors, while the 2024 configuration is listed with SRAM Level Silver two-piston hydraulic brakes.

For an exact inventory unit, the bike's model-year build sheet should therefore be used to confirm the installed brake system.

Reynolds Blacklabel Carbon Wheels

One of the defining features of this particular configuration is its carbon wheelset.

The 2024 Factory Float carbon-wheel build uses:

• Reynolds Blacklabel 309/289 XC rims

• Industry Nine Hydra hubs

• 29-inch wheels

• 30 mm front rim width

• 28 mm rear rim width

• 15 x 110 mm front spacing

• 12 x 148 mm rear spacing

The carbon wheelset reduces rotating mass and complements the Mach 4 SL's lightweight XC design. The Industry Nine Hydra hubs provide fast engagement, making the drivetrain feel responsive when accelerating out of corners or technical sections.

Maxxis Ardent Race Tires

The documented carbon-wheel configuration uses Maxxis Ardent Race 29 x 2.4-inch tires with tubeless-ready construction, EXO protection, and 120 TPI casing.

Some earlier Pro XT/XTR configurations were supplied with Maxxis Ardent Race 29 x 2.2-inch tires, so tire width should be confirmed against the specific model year.

The Ardent Race is designed to balance rolling speed with enough tread and casing protection for technical cross-country riding.

FOX Transfer Factory Dropper

The FOX Transfer Factory Series dropper post lets the rider lower the saddle quickly before descending or negotiating steep terrain.

Documented travel varies by frame size, with common specifications including:

• XS–SM: 125 mm

• MD–LG: 150 mm

• XL: up to 210 mm on some later configurations

The dropper provides greater freedom of movement on technical terrain while allowing the saddle to return to full height for efficient climbing.

Phoenix Carbon Cockpit

The cockpit is built around Pivot's lightweight Phoenix components.

Cockpit Components

• Phoenix Team Flat Carbon handlebar

• 760 mm width

• Phoenix Team XC/Trail stem

• 60 mm stem

• Phoenix Factory Lock-On grips

• Phoenix WTB Pro Volt narrow saddle

This combination provides a lightweight cockpit while maintaining useful steering leverage for technical XC trails.

Frame Features

The Mach 4 SL combines race-oriented weight savings with practical trail features.

Frame Highlights

• Hollow Core carbon construction

• DW-Link suspension

• Internal cable routing

• Pivot Precision Sealed Integrated Cartridge headset

• Large water-bottle clearance

• Injection-molded rubberized frame protection

• 29-inch wheel platform

• Modern 15 x 110 / 12 x 148 mm axle standards

• Tire clearance up to approximately 2.4 inches

• Size-specific frame tuning

Pivot's Gen 3 archive confirms the Mach 4 SL's 29-inch platform and adjustable suspension architecture.

Technical Specifications

*The 2024 carbon-wheel configuration is documented with SRAM Level Silver two-piston brakes. Earlier Pro XT/XTR versions were specified with Shimano XT M8100 two-piston brakes, so the exact brake specification should be matched to the model year of the bike being listed.

Available Sizes

The Mach 4 SL Gen 3 is offered in:

• XS

• Small

• Medium

• Large

• XL

The frame uses size-specific tuning intended to preserve the bike's responsive XC handling across the size range.

Ideal Applications

The Pivot Mach 4 SL Pro XT/XTR Factory Float is well suited for:

• Cross-country racing

• XC training

• Marathon mountain biking

• Fast singletrack

• Technical XC trails

• Long-distance mountain rides

• Competitive trail riding

• Riders prioritizing low weight and acceleration

• Riders looking for premium mechanical Shimano shifting

Why Choose the Mach 4 SL Pro XT/XTR Factory Float?

The Pivot Mach 4 SL Pro XT/XTR Factory Float – Ice Blue combines a lightweight carbon XC chassis with a premium suspension and drivetrain package.

Its DW-Link suspension is designed to maintain traction without wasting pedaling energy, while the FOX Factory suspension provides a high level of adjustability and control. The Shimano XTR/XT drivetrain offers a wide 10–51T range, and the Reynolds Blacklabel carbon wheels help create a responsive, lightweight package.

The addition of a FOX Transfer Factory dropper also makes the bike more versatile than a traditional XC race setup, giving riders better body positioning when trails become steep or technical.

With its Ice Blue carbon frame, FOX Factory suspension, Shimano XTR/XT drivetrain, and Reynolds/Industry Nine carbon wheelset, this configuration is an excellent choice for riders looking for a fast, refined, and highly capable XC mountain bike.

Package / Bike Configuration

The documented Factory Float carbon-wheel configuration includes:

• Pivot Mach 4 SL Hollow Core carbon frame

• FOX Factory Step-Cast 34 fork

• FOX Factory Float rear shock

• Shimano XTR M9100 12-speed rear derailleur

• Shimano XT M8100 12-speed shifter

• Race Face Æffect R 34T crankset

• Shimano XT M8100 10–51T cassette

• Shimano CN-M8100 12-speed chain

• SRAM Level Silver two-piston hydraulic brakes on the documented 2024 carbon-wheel build

• Reynolds Blacklabel carbon wheelset

• Industry Nine Hydra hubs

• Maxxis Ardent Race 29 x 2.4-inch tires

• FOX Transfer Factory dropper seatpost

• Phoenix Team Flat Carbon handlebar

• Phoenix Team XC/Trail stem

• Phoenix Factory Lock-On grips

• Phoenix WTB Pro Volt narrow saddle

• Pivot Precision Sealed Integrated Cartridge headset

• Ice Blue finish

Model-Year Specification Note

The Mach 4 SL Pro XT/XTR Factory Float was offered in more than one model-year configuration. The core platform remains consistent—carbon Mach 4 SL frame, DW-Link suspension, FOX Factory suspension, and Shimano XTR/XT drivetrain—but individual components can change. For example, the documented 2024 carbon-wheel version uses GRIP SL fork damping, SRAM Level Silver brakes, Reynolds Blacklabel carbon wheels, and 29 x 2.4-inch Maxxis tires, while other Pro XT/XTR listings use FIT4, Shimano XT brakes, DT Swiss XR1700 wheels, and narrower 2.2-inch tires.

For a product listing tied to a specific inventory unit, the manufacturer's build sheet should take precedence over generic model-year specifications.