Specialized Stumpjumper 15 Comp Alloy — Full Suspension Mountain Bike

Frame: M5 alloy chassis with Trail Geometry, SWAT downtube storage, adjustable head tube angle, threaded bottom bracket, and 145mm of rear travel

Fork / Shock: FOX FLOAT 36 Rhythm fork (140mm travel on S1, 150mm on S2-S6) paired with a FOX FLOAT Performance rear shock featuring Specialized's GENIE shock technology and Trail Tune

Drivetrain: Shimano SLX 12-speed groupset with an M7100 SGS rear derailleur, 10-51t cassette, and 32T crankset

Brakes: TRP Trail EVO 4-piston hydraulic disc brakes, 203mm front rotor and 180-203mm rear rotor depending on size

Wheels / Tyres: Specialized hookless alloy tubeless-ready wheels (30mm inner width) with Butcher 29x2.3 front and Eliminator rear tires (27.5x2.3 on S1-S2, 29x2.3 on S3-S6)

Cockpit: Specialized 6000 series alloy handlebar (20-40mm rise depending on size), alloy Trail stem, and an X-Fusion Manic dropper post (125mm to 190mm travel depending on size)

Standout feature: GENIE Shock Technology combines coil-like traction with air-spring bottom-out resistance, plus six-way adjustable geometry and internal SWAT storage

The Stumpjumper 15 Comp Alloy suits intermediate riders who want a capable, well-equipped trail bike for tackling technical terrain on trails like Hydraulink or Okanagan Mountain Park without the price tag of a carbon build. Its dependable Shimano SLX drivetrain and adjustable geometry make it especially appealing to riders who want to fine-tune their setup while sticking to a proven, easy-to-service componentry package.

Our team at Fresh Air will help you find the right fit in-store at both Kelowna locations. Stop by to work with one of our experienced staff members, or call 250-763-3425.

Our team will set up your FOX FLOAT rear shock and FLOAT 36 fork with sag, rebound, and compression tuned to your weight and riding style, and can walk you through the GENIE technology's tuning range so you get the traction and bottom-out resistance you want. We'll route and set up your X-Fusion Manic dropper post, and get your tubeless tire setup dialled in for local trail conditions. If you want to explore the six-way geometry adjustment or mixed-wheel setup, we can walk you through those options too. Drop into Fresh Air Pandosy (555 Groves Ave) or Fresh Air Dilworth (1656 Dilworth Drive), or book an appointment online.

Q1: What size Specialized Stumpjumper 15 Comp Alloy do I need?
Specialized offers the Stumpjumper 15 in six sizes, S1 through S6, and sizing is based on your height and preferred reach rather than traditional inseam measurements. Check Specialized's geometry chart for exact figures, or come into either Fresh Air location and our team will get you set up on the right size.

Q2: Is the Stumpjumper 15 Comp Alloy right for Hydraulink or Okanagan Mountain Park?
Yes — with 145mm of rear travel, a 150mm-travel fork, and aggressive Butcher/Eliminator tires, the Stumpjumper 15 is well suited to the technical descents and climbs found at Hydraulink Trails and Okanagan Mountain Park.

Q3: How do I set up the suspension on the Stumpjumper 15 Comp Alloy for my weight and riding style?
Suspension setup starts with sag — typically 25-30% on the FOX FLOAT rear shock and FLOAT 36 fork, adjusted for your weight and how aggressively you ride. Our team can dial in sag, rebound, and compression settings in-store, and walk you through how the GENIE technology's tunability affects mid-stroke support and bottom-out resistance.