What is Genie shock technology?

It is Specialized's rear shock design that pairs a poppy, playful feel with deep-stroke support, so the bike stays composed on big hits without feeling dead on smaller ones.

Can I run it as a mixed-wheel bike?

Yes. The six-way geometry adjustment lets you run full 29-inch wheels or a mixed setup, and you can tune the spring curve to match.

Does the rear shock have a lockout?

No. There is no rear lockout, though owners report it climbs well without one.

Is it good for long climbs?

It climbs capably without locking out the shock, but some owners find it sluggish on long climbs and note its weight.

What drivetrain and brakes does it have?

It comes with SRAM GX Eagle T-Type AXS wireless shifting and Maven brakes.

The bike ships with standard Presta valve inner tubes.

What do buyers say about the Specialized Stumpjumper 15 Expert Mountain Bike?

Rated 4.6 out of 5 from 30 ratings. Buyers like: Responsive, playful yet very capable; Climbs great without locking out the rear shock; Descends beautifully and feels stable and predictable. Common complaints: No rear lockout on the shock; SRAM AXS shifting felt slow compared to mechanical.

Where can I buy the Specialized Stumpjumper 15 Expert Mountain Bike?

13 stores we checked sell it, including Performance Bicycle, BikeExchange, Specialized.com, Red Rock Bicycle Co, Berkshire Bike and Board.

Specialized Stumpjumper 15 Expert Mountain Bike

Q: Where is the Specialized Stumpjumper 15 Expert Mountain Bike cheapest?

At Performance Bicycle, for $4,699.99, as of our latest check.

Best price now

$4,699.99at Performance BicycleChecked Nov 4

Compared across 13 stores. Prices are checked against each store and labelled with when.

Visit Performance Bicycle

What reviewers say

4.6 / 530 ratings

Owners rate it highly, praising a responsive, playful ride that stays stable and predictable on descents and climbs well without locking out the shock. Complaints center on weight, slow-feeling AXS shifting, the lack of a rear lockout and pedal strikes from the low bottom bracket.

What people mention

Ride feelPraisedRiders describe it as poppy and playful while still feeling stable and predictable on descents.
ClimbingMixedIt climbs well without locking out the shock, but some find it sluggish on long climbs.
WeightMixedSome say it feels lighter than expected and carries speed well; others find it heavier than their previous bikes.
ShiftingMixedSRAM AXS shifting is called smooth and precise by some, slow compared with mechanical by others.
Shock lockoutCriticisedBuyers note there is no rear lockout on the shock.
Pedal strikesCriticisedThe low bottom bracket and drop lead to pedal strikes on rough ground.

Size	Stack (mm)	Reach (mm)	Headtube Length (mm)	BB Height (mm)	BB Drop (mm)
S1	608	400	95	334	41
S2	618	425	100	337	38
S3	627	450	110	337	38
S4	640	475	140	337	38
S5	654	500	140	337	38
S6	667	530	140	337	38

Size

Stack (mm)

Reach (mm)

Headtube Length (mm)

BB Height (mm)

BB Drop (mm)

608

400

334

618

425

100

337

627

450

110

337

640

475

140

337

654

500

140

337

667

530

140

337

About the Specialized Stumpjumper 15 Expert Mountain Bike

The Stumpjumper 15 Expert is a full-suspension mountain bike from Specialized. It has a FACT 11m carbon chassis and rear end. The rear suspension uses GENIE shock technology.

Up front is a FOX FLOAT 36 Performance Elite fork with a GRIP X2 damper. The drivetrain is SRAM GX Eagle T-Type AXS.

The bike has Trail Geometry with six-way geometry adjustment. You can fine-tune the head angle and bottom bracket height. It can be set up with mixed wheels or 29" wheels, and the spring curve is tunable.

Suspension

Full suspension

Frame

FACT 11m carbon chassis and rear end

Fork

FOX FLOAT 36 Performance Elite with GRIP X2 damper

Drivetrain

SRAM GX Eagle T-Type AXS

Geometry

Trail, six-way adjustment

Wheel setup

Mixed wheel or 29"