Specialized Stumpjumper 15 EVO Comp Alloy 2027
Expected Arrival: Late September 2026
Pre-Order Now
Pre-order your Specialized Stumpjumper 15 EVO Comp Alloy today and we will keep you updated as its expected arrival approaches.
SRAM Eagle 70, FOX Rhythm
The Specialized Stumpjumper 15 EVO Comp Alloy is a highly capable trail bike for riders who want greater descending confidence without losing the lively handling and pedalling efficiency that make the Stumpjumper so enjoyable. Its M5 aluminium frame, 160mm FOX 36 fork and GENIE-equipped FOX FLOAT X shock provide the control needed for rough trails, while adjustable geometry allows the bike to be tuned for different terrain and riding styles.
Capable M5 Aluminium Frame
The M5 aluminium chassis provides a strong and dependable foundation for regular trail riding. With 145mm of rear-wheel travel, modern trail geometry and sealed cartridge bearing pivots, it is built to handle demanding terrain while remaining responsive enough for long climbs and flowing singletrack.
A threaded bottom bracket simplifies servicing, while SRAM UDH compatibility makes replacement derailleur hangers easier to source.
FOX 36 Rhythm Control
The FOX FLOAT 36 Rhythm fork provides 160mm of travel on sizes S2 to S6, giving the Stumpjumper 15 EVO the support and steering accuracy needed on steep or rough descents. Its GRIP damper is straightforward to adjust and provides dependable control without requiring a complicated setup.
Size S1 receives 150mm of fork travel to maintain balanced handling for smaller riders.
GENIE Suspension Performance
The FOX FLOAT X Performance shock uses Specialized GENIE air-spring technology to provide a supple feel over smaller bumps while retaining the support needed for harder impacts. This helps the rear wheel maintain traction over roots, rocks and braking bumps without making the bike feel soft or inefficient under pedalling.
The external reservoir helps manage heat on longer descents, while the two-position lever provides easy access to a firmer setting when climbing.
Adjustable Trail Geometry
The Stumpjumper 15 EVO offers six geometry configurations through its adjustable head angle and bottom bracket height. Riders can choose a lower and slacker position for steep, technical trails or a higher setting for additional pedal clearance and sharper handling.
Compatible aftermarket shock links also allow the bike to run either matching 29-inch wheels or a mixed-wheel setup without compromising its intended geometry.
SRAM Eagle 70 Transmission
SRAM Eagle 70 provides the precise shifting and durability of the T-Type Transmission platform through a fully mechanical system. The wide-range 10–52-tooth cassette provides suitable gearing for steep climbs, while the robust derailleur is designed to shift consistently when the trail becomes rough.
Its mechanical operation means there are no batteries to charge, making it a practical choice for riders who value simplicity and straightforward servicing.
Confident Four-Piston Braking
SRAM DB8 Stealth hydraulic disc brakes provide four-piston stopping power for greater control on steep or sustained descents. Their mineral-oil system offers predictable lever feel and is well suited to demanding trail riding.
Key Features
- Frame: M5 aluminium chassis and rear end with 145mm travel
- Fork: FOX FLOAT 36 Rhythm with GRIP damper
- Fork travel: 150mm on S1 and 160mm on S2–S6
- Rear shock: FOX FLOAT X Performance with Specialized GENIE technology
- Drivetrain: SRAM Eagle 70 mechanical T-Type Transmission
- Cassette: SRAM 1270 Transmission, 12-speed, 10–52T
- Brakes: SRAM DB8 Stealth four-piston hydraulic disc
- Wheels: Specialized hookless alloy, 30mm internal width
- Front tyre: Specialized Butcher GRID TRAIL T9, 29 x 2.4
- Rear tyre: Specialized Eliminator GRID TRAIL T7, 2.4-inch
- Dropper post: Size-specific X-Fusion Manic
- Geometry: Six adjustable configurations
- Storage: Internal SWAT downtube storage
- Frame standards: Threaded bottom bracket, Boost 12 x 148mm and SRAM UDH
- Wheel compatibility: Full 29-inch or mixed-wheel compatible with the appropriate link
- Claimed weight: 36lb 12.7oz
Why Riders Love the Specialized Stumpjumper 15 EVO Comp Alloy
The Specialized Stumpjumper 15 EVO Comp Alloy suits riders who want one bike capable of handling everyday trail rides, technical singletrack and more demanding descents. It offers useful adjustability and dependable components without pushing the price into premium carbon territory.
Balanced Trail Performance
Its combination of 145mm rear travel and a 160mm fork provides enough control for rough terrain while retaining the responsive feel expected from a versatile trail bike.
GENIE Suspension
The GENIE-equipped rear shock improves sensitivity and traction over smaller bumps while providing progressive support as the suspension moves deeper into its travel.
Adjustable Handling
Six geometry settings allow riders to prioritise stability, agility or ground clearance according to their terrain and riding preferences.
Mechanical Simplicity
SRAM Eagle 70 Transmission provides a wide gear range and dependable shifting without batteries, charging or electronic components.
Useful Frame Storage
The SWAT downtube compartment provides space for tools, a tube and other trail essentials without requiring an additional bag.
Durable Construction
The M5 aluminium frame and practical component selection make this a strong option for riders who expect to use their bike regularly across changing trail conditions.
Upgrade Potential
Tubeless-ready rims, UDH compatibility, adjustable geometry and mixed-wheel compatibility provide a solid platform for future upgrades.
Who Is This Bike For?
Perfect For
✔ Technical trail riding
✔ Steep and rough descents
✔ All-day trail adventures
✔ Riders wanting adjustable geometry
✔ Riders who prefer an aluminium frame
✔ Riders wanting mechanical SRAM Transmission
✔ Anyone progressing towards more demanding terrain
Our Thoughts on the Specialized Stumpjumper 15 EVO Comp Alloy
The Specialized Stumpjumper 15 EVO Comp Alloy is one of the most adaptable trail bikes in the Specialized range. It provides much of the descending confidence associated with a longer-travel bike while remaining efficient and enjoyable on everyday trail rides.
If your riding leans towards steeper, rougher and more technical terrain, the EVO’s longer-travel fork and adjustable geometry make it an excellent choice for gaining extra capability without moving to a dedicated enduro bike.
This model makes particular sense for riders who value a durable aluminium frame, straightforward mechanical shifting and suspension that can handle demanding terrain. The FOX 36 fork and GENIE-equipped FLOAT X shock are meaningful additions that improve control rather than simply adding cost. For riders wanting a capable long-term trail bike without stepping up to a carbon model, it is a very well-balanced option.
Why Buy from Chain Reaction?
✔ Official Specialized Dealer
✔ Professionally assembled, safety checked and workshop tuned before collection or dispatch
✔ Brakes professionally pre-bedded before collection or dispatch
✔A premium bike handover experience, including an expert initial bike setup, suspension tuning, a feature walkthrough and practical maintenance advice, so you leave confident and ready to enjoy every ride.
✔ Expert bike sizing and setup advice
✔ Lifetime workshop support from experienced mechanics
✔ Nationwide New Zealand delivery
✔ Finance and WorkRide options available
Size Guide
- S1: Approximately 150–160cm
- S2: Approximately 157–173cm
- S3: Approximately 165–180cm
- S4: Approximately 173–188cm
- S5: Approximately 178–193cm
- S6: Approximately 188–203cm
Rider height is only a starting point. Riding style, body proportions and preferred handling can influence the ideal size, particularly where height recommendations overlap. Contact Chain Reaction for personalised sizing advice.
Delivery and Assembly
Every Specialized Stumpjumper 15 EVO Comp Alloy purchased from Chain Reaction is professionally assembled, tuned and safety checked by our workshop.
Your bike receives:
- Complete professional assembly
- Full workshop safety inspection
- Gear adjustment and drivetrain tuning
- Brakes pre-bedded using our Sinter Smart bedding-in machine
- Suspension initially set according to rider weight
- Secure packaging for transport
- Nationwide New Zealand delivery
- Click & Collect where available
