2026 Specialized S-Works Stumpjumper 15 Frameset

Satin Shadow Silver / Ashen Grey / Gloss Black Liquid Metal

The 2026 Specialized S-Works Stumpjumper 15 Frameset is built to eliminate every compromise in trail riding. Designed for riders who demand the ultimate in performance and personalization, it blends cutting-edge carbon construction, advanced suspension technology, and adjustable geometry to create the most capable trail platform Specialized has ever produced.

At the core of the frame is GENIE suspension technology, delivering coil-like sensitivity, improved traction, and exceptional bottom-out control. Whether climbing efficiently or charging through technical terrain, the Stumpjumper 15 frameset provides a ride feel that balances playful responsiveness with big-bike capability.

Breakthrough Suspension Performance

The Stumpjumper 15 introduces GENIE Shock Technology, a patented air spring design that combines the best characteristics of coil and air suspension.

GENIE provides riders with:

• Coil-like small bump sensitivity and traction

• Progressive end-stroke support to prevent harsh bottom-outs

• Tunable mid-stroke support for a lively, playful ride feel

This innovative suspension system allows the Stumpjumper 15 to deliver downhill performance while maintaining efficient pedaling characteristics.

The Magic Carpet Ride

GENIE technology creates a two-stage spring curve:

• Linear coil-like feel through the bump zone for enhanced traction

• Progressive air spring ramp-up near bottom-out for big-hit protection

The result is a suspension system that absorbs impacts smoothly while maintaining stability and control on aggressive trails.

Improved Bump Management

Extensive testing shows the Stumpjumper 15 delivers 16.3% better bump force management compared to traditional air-sprung systems.

For perspective:

• Stumpjumper 15 uses 101mm of travel to absorb a 1080N impact

• Comparable to bikes with significantly more travel

This gives riders the feel of a bigger bike while keeping the efficiency and agility expected from a trail machine.

Maximum Traction and Control

Field testing shows the Stumpjumper 15 delivers 57% better traction than traditional air-sprung setups.

The GENIE system keeps the rear wheel planted on the trail, allowing riders to:

• Maintain speed through technical sections

• Climb with increased grip

• Corner with more confidence

Reduced Bottom-Out Events

GENIE’s two-stage spring design results in 39% fewer bottom-outs compared to conventional air shocks.

The progressive ramp in the final portion of travel adds strong support for big hits, drops, and aggressive riding without sacrificing small-bump sensitivity.

Highly Adjustable Trail Geometry

The Stumpjumper 15 is one of the most customizable trail platforms available.

Key adjustments include:

• Six geometry configurations

• Adjustable head tube angle

• Adjustable bottom bracket height

• Mixed wheel or full 29” compatibility

• Tunable suspension spring curve

This allows riders to fine-tune the bike for climbing efficiency, aggressive descending, or technical terrain.

Lightweight S-Works Carbon Construction

The frameset is built from FACT 11m carbon, delivering exceptional strength, stiffness, and low weight.

Key frame features include:

• FACT 11m carbon chassis, rear end, and link

• Integrated SWAT™ 4.0 storage system

• Lifetime suspension pivot bearing replacement for the original owner

The Rider-First engineered design ensures consistent ride characteristics across all frame sizes.

Premium Suspension Included

Rear Shock: FOX FLOAT X Factory
Suspension Technology: Specialized GENIE Shock Tech
Adjustments: 2-position open/firm with 3-position compression adjust in open mode

This high-end shock delivers precise control and tunability for aggressive trail riding.

Frameset Specifications

Frame: Specialized S-Works Stumpjumper 15 – FACT 11m Carbon
Rear Shock: FOX FLOAT X Factory with GENIE technology
Wheel Compatibility: 29” or mixed wheel configurations
Drivetrain Compatibility: Electronic drivetrains only
Storage: Integrated SWAT™ 4.0 downtube storage
Warranty: Lifetime replacement suspension pivot bearings (original owner)

Color: Satin Shadow Silver / Ashen Grey / Gloss Black Liquid Metal

Online Ordering

This frameset is available for online ordering only.
If the item can be added to your cart, it is currently available.

Please allow up to 48 hours handling time prior to shipment.