High Performance Full Suspension Bike for Trail and Enduro Riding

Pivot Mach 4 SL Pro X0 Transmission Factory Float – Ice Blue

The Pivot Mach 4 SL Pro X0 Transmission Factory Float – Ice Blue is a premium full-suspension cross-country mountain bike built for riders who want explosive acceleration, efficient climbing, precise handling, and high-end suspension performance.

At its center is Pivot's lightweight Mach 4 SL carbon frame, designed around the company's efficient DW-Link suspension platform. The bike combines a FOX Factory Step-Cast 34 fork, FOX Factory Float rear shock, SRAM X0 Eagle Transmission electronic drivetrain, premium carbon wheels, and a FOX Transfer Factory dropper seatpost.

With 120 mm of front travel and 95 mm of rear travel, the Mach 4 SL is designed to move quickly across XC courses while retaining enough suspension capability for technical singletrack and demanding descents.

Key Features

• Lightweight Mach 4 SL carbon frame

• Pivot DW-Link rear suspension

• 29-inch wheels

• 120 mm front travel

• 95 mm rear travel

• FOX Factory Step-Cast 34 fork

• FOX Factory Float rear shock

• SRAM X0 Eagle Transmission 12-speed electronic drivetrain

• SRAM AXS Pod Controller

• SRAM X0 Eagle DUB 34T crankset

• SRAM X0 1295 Eagle Transmission 10–52T cassette

• SRAM X0 Eagle Flattop chain

• SRAM Motive Silver four-piston hydraulic brakes

• Reynolds Blacklabel 309 XC PRO carbon wheelset

• Industry Nine Solix hubs

• Maxxis Rekon 29 × 2.4-inch front tire

• Maxxis Rekon Race 29 × 2.4-inch rear tire

• FOX Transfer Factory dropper seatpost

• Phoenix carbon cockpit

• Ice Blue finish

Hollow Core Carbon Frame

The Mach 4 SL uses Pivot's Hollow Core carbon construction, creating a lightweight frame intended to deliver a strong balance of stiffness, strength, and responsive handling.

Pivot developed the Gen 3 Mach 4 SL to reduce weight while improving the suspension system and overall versatility. Published frame information lists the small frame at approximately 1,660 g without the rear shock, illustrating the emphasis placed on weight reduction.

The frame also features:

• Size-specific carbon layup

• Full internal cable routing

• Pivot Cable Port System

• Injection-molded rubberized frame protection

• Large water-bottle clearance

• Modern 15 × 110 mm front and 12 × 148 mm rear axle spacing

• 29-inch wheel platform

Medium through XL frames can accommodate two water bottles, while every frame size provides clearance for a large bottle.

DW-Link Suspension

Pivot's DW-Link suspension is tuned specifically for efficient XC riding.

The suspension is designed to remain stable and efficient when pedaling while allowing the rear wheel to track the ground over roots, rocks, and uneven terrain. On this Pro X0 configuration, the rear suspension provides 95 mm of travel, matched with a 120 mm front fork.

This combination gives the Mach 4 SL a fast, efficient character without making technical trails feel overly harsh or demanding.

FOX Factory Step-Cast 34 Fork

The front suspension uses a FOX Factory Step-Cast 34 29-inch fork.

Fork Specifications

• 120 mm travel

• 44 mm offset

• GRIP SL damper

• Air spring

• 29-inch wheel compatibility

The Step-Cast design removes unnecessary material while maintaining the chassis stiffness needed for precise steering. The 120 mm travel provides additional control when the trail becomes rocky, steep, or technical.

FOX Factory Float Rear Shock

A FOX Factory Float rear shock controls the Mach 4 SL's 95 mm rear suspension.

The air-sprung shock works with the DW-Link platform to balance pedaling efficiency with active suspension performance. Riders can tune the air pressure and rebound characteristics according to rider weight, terrain, and riding style.

SRAM X0 Eagle Transmission

The bike's drivetrain is centered around the SRAM X0 Eagle Transmission 12-speed electronic system.

The X0 Transmission rear derailleur is paired with the wireless SRAM AXS Pod Controller, eliminating conventional derailleur cables and providing clean, precise electronic shifting.

Drivetrain Components

• SRAM X0 Eagle AXS 12-speed rear derailleur

• SRAM AXS Pod Controller

• SRAM X0 Eagle DUB crankset

• 34T chainring

• SRAM X0 1295 Eagle Transmission cassette

• 10–52T gear range

• SRAM X0 Eagle Flattop 12-speed chain

The 10–52T cassette provides a wide range for steep climbs while retaining higher gears for fast XC sections.

SRAM Motive Silver Brakes

The 2025 configuration uses SRAM Motive Silver four-piston hydraulic disc brakes.

The four-piston design gives the Mach 4 SL stronger braking capability than the two-piston systems found on some earlier versions of this build. This is useful for riders who regularly ride steep or technical terrain in addition to traditional XC courses.

The documented build uses 180 mm front and 160 mm rear SRAM Centerline CenterLock rotors.

Reynolds Blacklabel Carbon Wheels

The carbon-wheel version of the Pro X0 Transmission receives a premium Reynolds Blacklabel 309 XC PRO wheelset.

The documented 2025 configuration includes:

• Reynolds Blacklabel 309 XC PRO carbon rims

• Industry Nine Solix hubs

• 30 mm front rim width

• 30 mm rear rim width

• 29-inch wheel size

• 15 × 110 mm front spacing

• 12 × 148 mm rear spacing

The carbon wheelset helps complement the Mach 4 SL's lightweight XC design by reducing rotating mass and maintaining a responsive feel during acceleration.

Carbon-Wheel Configuration

This distinction is important because the standard Pro X0 Transmission is also available with DT Swiss XR1700 aluminum wheels and DT Swiss 350 hubs. The Reynolds/Industry Nine combination identifies the premium carbon-wheel configuration requested here.

Maxxis 2.4-Inch Tires

The carbon-wheel configuration uses a wider tire combination:

• Front: Maxxis Rekon 29 × 2.4 inches

• Rear: Maxxis Rekon Race 29 × 2.4 inches

• Tubeless-ready construction

• EXO casing

• 120 TPI

• 3C compound on the listed Rekon front tire

The 2.4-inch tires provide additional air volume, traction, and control while remaining within the Mach 4 SL's approximately 2.4-inch tire-clearance capability.

FOX Transfer Factory Dropper

The FOX Transfer Factory Series dropper seatpost allows the saddle to be lowered quickly for descents and technical sections.

Travel is selected according to frame size. The dropper provides additional room for body movement when descending while allowing the rider to return the saddle to its efficient climbing position when needed.

Phoenix Carbon Cockpit

The Pro X0 configuration uses a lightweight Phoenix cockpit.

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

The carbon handlebar helps keep cockpit weight down while providing a stable and responsive steering platform for XC riding.

Frame Features

The Mach 4 SL is designed to function as both a high-performance XC bike and a capable technical trail machine.

Practical Features

• Hollow Core carbon frame

• DW-Link suspension

• Travel-adjustable suspension architecture

• Size-specific carbon layup

• Full internal cable routing

• Pivot Cable Port System

• Integrated headset

• Injection-molded frame protection

• Large bottle clearance

• 29-inch wheels

• Approximately 2.4-inch tire clearance

• 15 × 110 mm front axle

• 12 × 148 mm rear axle

The frame's combination of low weight, efficient suspension, and modern frame features makes it suitable for everything from XC racing to long-distance technical trail rides.

Technical Specifications

The table follows the documented 2025 Pro X0 Eagle Transmission with Carbon Wheels configuration.

Available Sizes

The Mach 4 SL platform is offered in:

• X-Small

• Small

• Medium

• Large

• X-Large

The 29-inch wheel platform is maintained across the size range, while Pivot uses size-specific carbon construction to tune the frame for different rider sizes.

Ideal Applications

The Pivot Mach 4 SL Pro X0 Transmission 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 who prioritize acceleration and efficiency

• Riders who want wireless electronic shifting

• Riders looking for premium carbon-wheel performance

Why Choose the Mach 4 SL Pro X0 Transmission?

The Mach 4 SL Pro X0 Transmission Factory Float brings together a lightweight carbon chassis, efficient DW-Link suspension, premium FOX Factory components, SRAM's X0 Eagle Transmission, and a high-end carbon wheelset.

The 120 mm fork and 95 mm rear suspension create a balanced setup for fast XC riding, while the 29-inch wheels and 2.4-inch tires provide useful rollover and traction on technical terrain.

The SRAM X0 Eagle Transmission adds wireless electronic shifting and a broad 10–52T gear range, making steep climbs easier while maintaining useful gearing for fast sections.

The Reynolds Blacklabel carbon wheels with Industry Nine Solix hubs further enhance the bike's responsive character. Combined with the FOX Transfer Factory dropper and four-piston Motive brakes, this version is more capable on technical terrain than a minimalist XC race build.

Finished in Ice Blue, the Mach 4 SL Pro X0 Transmission Factory Float is an excellent choice for riders seeking a lightweight, fast, premium XC bike that can confidently extend into demanding trail riding.

Package / Bike Configuration

The documented carbon-wheel configuration includes:

• Pivot Mach 4 SL Hollow Core carbon frame

• FOX Factory Step-Cast 34 120 mm fork

• FOX Factory Float rear shock

• SRAM X0 Eagle AXS 12-speed rear derailleur

• SRAM AXS Pod Controller

• SRAM X0 Eagle DUB 34T crankset

• SRAM X0 1295 Eagle Transmission 10–52T cassette

• SRAM X0 Eagle Flattop 12-speed chain

• SRAM Motive Silver four-piston hydraulic brakes

• Reynolds Blacklabel 309 XC PRO carbon wheelset

• Industry Nine Solix hubs

• Maxxis Rekon 29 × 2.4-inch front tire

• Maxxis Rekon Race 29 × 2.4-inch rear tire

• 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 X0 Transmission Factory Float changed slightly between model years. The 2025 configuration uses SRAM Motive Silver four-piston brakes, Reynolds Blacklabel 309 XC PRO carbon wheels with Industry Nine Solix hubs, and 2.4-inch Maxxis Rekon/Rekon Race tires.

Earlier 2024 versions used SRAM Level Silver two-piston brakes and DT Swiss XR1700 aluminum wheels, while the 2023 version used FOX FIT4 fork damping and the same general X0 Transmission drivetrain.

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