Stumpjumper 15 EVO Alloy SRAM NX Eagle, RockShox/X-Fusion
OverviewAbout the Specialized Stumpjumper 15 EVO Alloy SRAM NX Eagle, RockShox/X-Fusion
The Specialized Stumpjumper 15 EVO Alloy SRAM NX Eagle, RockShox/X-Fusion is a mountain bike, built on a aluminium frame, listed at $4,000. An off-road bike for trails, with grippy tyres and trail-ready geometry.
SizingWhat size Stumpjumper 15 EVO Alloy SRAM NX Eagle, RockShox/X-Fusion do I need?
Enter your height to see the size we would start with.
| Size | Rider height | In feet |
|---|---|---|
| XS | 142 to 155 cm | 4 ft 8 in to 5 ft 1 in |
| S | 152 to 165 cm | 5 ft 0 in to 5 ft 5 in |
| M | 165 to 177 cm | 5 ft 5 in to 5 ft 10 in |
| L | 177 to 188 cm | 5 ft 10 in to 6 ft 2 in |
| XL | 188 to 198 cm | 6 ft 2 in to 6 ft 6 in |
Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Specialized
- Model year
- 2026
- Category
- Mountain
- Frame
- Aluminium
- Wheel size
- 29-inch (mullet on the smallest sizes)
- Drivetrain
- SRAM NX Eagle 1x12
- Brakes
- Disc
- Frame sizes
- S1, S2, S3, S4, S5, S6
- Price
- $4,000, RRP AUD (Specialized Australia, checked 17 Oct 2026)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize S4
- Stack
- 644 mm
- Reach
- 470 mm
- Stack/reach
- 1.37
- Head angle
- 64 deg
- Seat angle
- 76 deg
- Wheelbase
- 1249 mm
- Chainstay
- 435 mm
- BB drop
- 35 mm
- Standover
- 745 mm
- Fork rake
- 44 mm
Drivetrain & buildFull specification
- Groupset
- SRAM NX Eagle
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 12
- Crank
- SRAM NX Eagle, DUB, S1-S3:165, S4-S6: 170mm, 55CL, 32T
- Cassette
- SRAM NX Eagle, 12-speed, 11-50t
- Rear derailleur
- SRAM NX Eagle, 12-speed
- Brakes
- SRAM DB6, 4-piston caliper, hydraulic disc
- Wheelset
- Specialized Alloy, Tubeless Ready, 29mm internal width, 28h
- Rim internal width
- 29 mm
- Tubeless
- Yes
- Fork material
- RockShox
- BB standard
- SRAM DUB Threaded Wide
- Cockpit
- Alloy Trail Stem, 35mm bar bore / Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2: 780 width, 20mm rise: S3-S6: 800 width, 50mm rise
- Saddle
- Body Geometry Bridge Saddle, steel rails, S1-S2:155mm, S3-S6:143mm
- UDH
- Yes
SuspensionMTB detail
- Front travel
- 150 mm
- Rear travel
- 145 mm
- Fork
- RockShox
- Shock
- X-Fusion 02 Pro RL
- Wheel config
- 29
- Discipline
- Trail
- Suspension
- full suspension
Bike DNAWhat the numbers say
- Steering
- A 64 deg head angle points to very slack, built for steep descending.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Specialized Australia product page 4291350 (spec list and geometry chart)), verified 2026-10-17. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; prices and stock are set by the seller and shown as at the date checked.
