The Specialized Stumpjumper FS 2025 is a full-suspension mountain bike designed for trail riding. Specialized has made several updates to this model, aiming to improve comfort, efficiency, and control on various terrains.
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Frame and Design
The frame of the 2025 Stumpjumper is made from lightweight aluminum or carbon fiber, depending on the model. Specialized has focused on making the frame stiff yet compliant, balancing durability with ride comfort. The geometry has been slightly adjusted compared to previous versions, with a slacker head angle for better downhill stability and a steeper seat tube angle for more efficient climbing. The frame includes internal cable routing, which keeps the bike looking clean and reduces the chance of cables getting snagged on obstacles.
Another notable feature is the updated SWAT storage system. The Stumpjumper has a compartment built into the downtube where riders can store tools, snacks, or extra gear. This is useful for those who want to ride without carrying a backpack. The bike also includes frame protection in key areas, such as the chainstay and bottom bracket, to prevent damage from rocks and debris.
Suspension
One of the biggest changes in the 2025 model is the new suspension system. Specialized worked with FOX to develop a custom shock called the Float GENIE. This shock is designed to offer better small-bump sensitivity while maintaining support on bigger hits. The air chamber is split into two sections, allowing for a smoother ride during the first part of travel while ramping up progression toward the end to prevent bottoming out.
The front suspension varies depending on the build but typically includes a FOX 34 or FOX 36 fork with 140-150mm of travel. This provides a good balance between absorbing rough terrain and maintaining efficiency on climbs. The rear travel is around 130-140mm, making the Stumpjumper a capable all-around trail bike rather than a pure enduro or downhill machine.
Components
The components on the Stumpjumper FS 2025 depend on the model. The higher-end versions come with SRAM GX or Shimano XT drivetrains, while the more affordable builds use SRAM NX or Shimano Deore. The bike is 12-speed across all models, giving riders a wide range of gears for both steep climbs and fast descents.
Braking is handled by hydraulic disc brakes, typically from SRAM or Shimano, with 180mm or 200mm rotors depending on the build. These brakes provide strong stopping power, which is essential for technical trails. The wheels are 29-inch in most configurations, although some smaller frame sizes may come with 27.5-inch wheels. The tires are wide, tubeless-ready, and designed for grip and durability.
The cockpit features a wide handlebar and a short stem, which helps with control and stability. The dropper post is standard across all models, allowing riders to lower their saddle quickly when descending.
Ride Quality
On the trail, the Stumpjumper FS 2025 feels stable and predictable. The updated suspension system makes a noticeable difference, especially on rougher terrain. Small bumps are absorbed smoothly, while bigger impacts don’t feel harsh. The bike climbs well for a full-suspension model, thanks to the steep seat tube angle and efficient pedaling platform. There is minimal pedal bob, meaning riders don’t lose much energy while going uphill.
When descending, the bike feels planted and in control. The slack head angle and well-tuned suspension allow riders to tackle technical sections with confidence. It’s not as aggressive as an enduro bike, but it’s well-suited for riders who want something capable of handling both climbs and descents.
Pros:
- Comfortable and efficient suspension
- Lightweight frame with good durability
- Internal storage for tools and snacks
- Strong braking performance
- Good climbing efficiency
Cons:
- Not as aggressive as some enduro bikes
- Higher-end models can be expensive
- Some riders may prefer a coil shock for added sensitivity
Who is this Bike For?
The Specialized Stumpjumper FS 2025 is best for trail riders who want a balanced bike for both climbing and descending. It’s not a pure enduro bike, so it’s better suited for riders who prioritize all-around performance rather than extreme downhill capability. Beginners will appreciate the bike’s stability and ease of handling, while experienced riders can push it hard on technical trails.
Conclusion
The 2025 Stumpjumper continues the legacy of one of the most well-known trail bikes. With its refined suspension, improved geometry, and practical storage solutions, it remains a strong choice for riders looking for a versatile full-suspension mountain bike. While it’s not the most aggressive bike on the market, it offers a well-rounded ride that can handle a wide range of trails with confidence.