High Performance Full Suspension Bike with Carbon Wheels for Trail

Pivot Mach 4 SL Pro X0 Transmission Factory Float (Carbon Wheels) – Ice Blue

The Pivot Mach 4 SL Pro X0 Transmission Factory Float (Carbon Wheels) – Ice Blue is a high-performance 29-inch full-suspension mountain bike designed for riders who want XC speed without giving up control on technical terrain.

Built around Pivot's lightweight carbon Mach 4 SL frame and efficient DW-Link suspension, this premium configuration combines a FOX Factory Step-Cast 34 fork, FOX Factory Float rear shock, SRAM X0 Eagle Transmission electronic drivetrain, premium Reynolds carbon wheels, and a FOX Factory Transfer dropper post.

With 120 mm of front travel and 95 mm of rear travel, the Mach 4 SL is optimized for fast climbing, responsive acceleration, and confident handling on demanding singletrack. The Ice Blue finish adds a distinctive appearance to a build focused heavily on performance.

Key Features

• Lightweight Mach 4 SL carbon frame

• DW-Link rear suspension

• 29-inch wheel platform

• 120 mm front suspension travel

• 95 mm rear suspension 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 10–52T cassette

• Reynolds Blacklabel carbon wheelset

• Industry Nine hubs

• Maxxis Rekon / Rekon Race 29 × 2.4-inch tires

• FOX Transfer Factory dropper seatpost

• Phoenix carbon handlebar

• SRAM hydraulic disc brakes

• Ice Blue finish

Lightweight Mach 4 SL Carbon Frame

The Mach 4 SL uses Pivot's Hollow Core carbon construction to achieve a lightweight chassis while maintaining the stiffness and durability expected from a performance mountain bike.

Pivot's carbon construction is developed with size-specific tuning so the frame can provide consistent handling characteristics across the available size range. The small frame is documented at approximately 1,660 g without the rear shock, highlighting the bike's emphasis on low weight.

The frame also provides practical features for everyday riding, including:

• Full internal cable routing

• Pivot Cable Port System

• Internal dropper-post compatibility

• Large water-bottle clearance

• Space for two bottles on Medium through X-Large frames

• 29-inch wheels

• Modern Boost axle spacing

DW-Link Suspension

The Mach 4 SL's DW-Link suspension platform is designed to maintain efficient pedaling while allowing the rear wheel to remain active over uneven terrain.

The Pro X0 configuration provides 95 mm of rear travel, paired with a 120 mm front fork. This creates a fast XC-oriented suspension package that can still handle roots, rocks, drops, and rough descents with confidence.

The frame's suspension design is particularly useful for riders who spend long periods climbing but still want predictable traction and control when the trail turns technical.

FOX Factory Step-Cast 34 Fork

Up front, the bike uses a FOX Factory Step-Cast 34 29-inch fork with a 44 mm offset and 120 mm of travel.

The Step-Cast chassis is designed to reduce unnecessary weight while retaining the stiffness needed for accurate steering. The Factory-level finish and damper provide a premium suspension package appropriate for racing and demanding trail use.

Fork Specifications

• FOX Factory Step-Cast 34

• 29-inch wheel compatibility

• 44 mm offset

• 120 mm travel

• Air spring

• GRIP SL damper on the 2025 specification

The documented 2024 build used FOX Factory Float 34 equipment, while later 2025 documentation identifies the fork specifically as the Step-Cast 34 with GRIP SL.

FOX Factory Float Rear Shock

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

The air-sprung design allows suspension settings to be adjusted for rider weight and riding style. Combined with the Mach 4 SL frame, it provides a balance between pedaling efficiency and active rear-wheel traction.

SRAM X0 Eagle Transmission

The drivetrain is built around SRAM X0 Eagle Transmission, giving the bike a clean wireless electronic shifting system.

The X0 rear derailleur works with the SRAM AXS Pod Controller and a wide-range 10–52T cassette. This combination provides low gearing for steep climbs while retaining useful higher gears for fast trail sections.

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 range

• SRAM X0 Eagle Flattop 12-speed chain

The electronic shifting system eliminates conventional derailleur cables and provides quick, consistent gear changes at the handlebar.

Premium Reynolds Carbon Wheels

The Carbon Wheels designation is an important part of this particular build.

The 2025 specification uses a Reynolds Blacklabel 309 XC PRO carbon wheelset with Industry Nine Solix hubs. The wheels use 29-inch rims with a 30 mm front and 30 mm rear internal width configuration.

Wheel Specifications

• Reynolds Blacklabel 309 XC PRO

• Carbon construction

• 29-inch diameter

• 30 mm front rim width

• 30 mm rear rim width

• Industry Nine Solix hubs

• 15 × 110 mm front axle

• 12 × 148 mm rear axle

The carbon wheelset complements the lightweight Mach 4 SL frame and helps create a responsive feel during acceleration and direction changes.

Earlier Carbon-Wheel Configuration

Earlier versions of this build were documented with Reynolds Blacklabel 309/289 XC wheels and Industry Nine Hydra hubs. Therefore, the wheel hub specification should be checked against the bike's model-year build sheet when identifying an individual unit.

Maxxis 2.4-Inch Tires

The carbon-wheel version uses wider 2.4-inch tires than the standard aluminum-wheel Pro X0 configuration.

The documented 2025 setup includes:

• Front: Maxxis Rekon 29 × 2.4", 3C, TR, EXO, 120 TPI

• Rear: Maxxis Rekon Race 29 × 2.4", TR, EXO, 120 TPI

This combination gives the bike additional traction and tire volume for loose or technical terrain while retaining the fast-rolling characteristics expected from an XC-oriented machine.

SRAM Hydraulic Disc Brakes

The brake specification depends on the model year.

For the documented 2025 carbon-wheel build, the bike uses SRAM Motive Silver four-piston hydraulic disc brakes, paired with:

• 180 mm front CenterLine CenterLock rotor

• 160 mm rear CenterLine CenterLock rotor

The four-piston setup provides stronger braking control for technical descents and more aggressive trail riding.

Earlier carbon-wheel versions used SRAM Level Silver two-piston brakes with 160 mm CenterLine CenterLock rotors, making this one of the notable model-year differences.

FOX Transfer Factory Dropper Post

The FOX Transfer Factory dropper post allows the rider to lower the saddle without leaving the riding position.

Lowering the saddle creates additional body movement and clearance during steep descents, corners, and technical sections. Dropper travel is size-dependent, with documented configurations ranging from approximately 125 mm to 175 mm depending on frame size.

Phoenix Carbon Cockpit

The bike uses a lightweight Phoenix cockpit designed to complement its XC-focused handling.

Cockpit Components

• Phoenix Team Flat Carbon handlebar

• 760 mm width

• Phoenix Team XC/Trail stem

• Phoenix WTB Pro Volt narrow saddle

• Phoenix Factory Lock-On grips on the 2025 specification

• FOX Transfer Factory dropper

The carbon handlebar helps keep cockpit weight under control while providing a stable steering platform for fast trail riding.

Frame Practicality

Despite its race-oriented character, the Mach 4 SL is designed for regular trail use.

Practical Frame Features

• Large water bottle fits inside all frame sizes

• Medium through X-Large can accommodate two bottles

• Internal cable routing

• Internal dropper compatibility

• Easy-maintenance Cable Port System

• Size-specific carbon tuning

• 29-inch wheel platform

• 15 × 110 mm front axle spacing

• 12 × 148 mm rear axle spacing

The combination of low weight, efficient suspension, and modern frame features makes the Mach 4 SL suitable for both competitive XC riding and long technical trail sessions.

Technical Specifications

*These components identify the documented 2025 carbon-wheel configuration. Earlier Mach 4 SL Pro X0 carbon-wheel builds used different brakes, hubs, wheel specifications, and some suspension details.

Available Frame Sizes

The Mach 4 SL is available in:

• X-Small

• Small

• Medium

• Large

• X-Large

Published sizing information covers riders from approximately 4'10" to 6'7", with exact fit depending on rider proportions and setup.

Ideal Applications

The Pivot Mach 4 SL Pro X0 Transmission Factory Float is an excellent choice for:

• Cross-country racing

• XC training

• Marathon mountain biking

• Fast singletrack

• Technical XC trails

• Long-distance mountain rides

• Competitive trail riding

• Riders who want electronic shifting

• Riders seeking a lightweight carbon-wheel build

• Riders who want XC efficiency with added technical-trail capability

Why Choose This Mach 4 SL?

The Pivot Mach 4 SL Pro X0 Transmission Factory Float (Carbon Wheels) brings together several premium technologies in one lightweight XC platform.

Its carbon frame and DW-Link suspension are designed to accelerate efficiently and maintain traction while climbing. The FOX Factory suspension provides refined control, while SRAM's X0 Eagle Transmission delivers wireless 12-speed shifting with a wide 10–52T range.

The Reynolds carbon wheelset further elevates the build with a lightweight, responsive wheel platform. Combined with 2.4-inch Maxxis tires, a FOX Transfer Factory dropper, and powerful hydraulic disc brakes, the bike is capable of moving well beyond smooth XC courses and into more demanding singletrack.

Finished in Ice Blue, this version is a strong choice for riders looking for a premium XC mountain bike that emphasizes speed, low weight, precise handling, and modern electronic drivetrain technology.

Package / Bike Configuration

The documented carbon-wheel configuration includes:

• Pivot Mach 4 SL 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 on the 2025 specification

• Reynolds Blacklabel carbon wheelset

• Industry Nine hubs

• Maxxis Rekon front tire

• Maxxis Rekon Race rear tire

• FOX Transfer Factory dropper seatpost

• Phoenix Team Flat Carbon handlebar

• Phoenix Team XC/Trail stem

• Phoenix WTB Pro Volt narrow saddle

• Pivot Precision Sealed Integrated Cartridge headset

• Ice Blue finish

Pedals are not included unless specifically stated by the seller.

Model-Year Specification Note

The product title is used for multiple model-year builds, so components should not be mixed between years.

The 2025 carbon-wheel configuration is documented with the Reynolds Blacklabel 309 XC PRO / Industry Nine Solix wheelset, SRAM Motive Silver four-piston brakes, 180/160 mm rotors, and Maxxis Rekon/Rekon Race 2.4-inch tires.

Earlier carbon-wheel versions were documented with Reynolds Blacklabel 309/289 XC wheels, Industry Nine Hydra hubs, SRAM Level Silver two-piston brakes, and 160 mm rotors. Some listings also specify a FOX FIT4 damper rather than the later GRIP SL specification.

For a specific retail unit, the manufacturer or dealer build sheet should take priority over generic model-year specifications.