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Today’s DealsStumpjumper ST Alloy 29
A 29″ aluminum frame full suspension trail bike with upper mid-range components.
Manufacturer Price
$2,010| Frame | Aluminum |
|---|---|
| Suspension | Full, 120 / 130mm |
| Fork | RockShox Recon Silver RL |
| Shock | X-Fusion |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | SX Eagle |
| Brakes | Tektro Gemini Hydraulic Disc |
| Seatpost | Dropper |
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
None yet.
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Summary
The Specialized Stumpjumper is a versatile trail bike praised for its lightweight frame, modern geometry, and playful handling. Its FSR suspension provides a smooth, responsive ride, though some reviews note inconsistencies in mid-stroke support and limitations in rougher terrain. Overall, it's seen as a well-rounded bike that excels on moderate trails and offers good value with practical features like SWAT storage.
Lightweight and stiff frame
Playful and precise handling
Smooth FSR suspension
SWAT storage system
Modern geometry
Inconsistent mid-stroke suspension
Limited capability in rough terrain
Some component spec issues
Can feel cramped on larger frames
The Stumpjumper has the best rear suspension in the game in our opinion.
It’s hard to explain, but this thing absolutely rips corners and blazes down easier trails, smashing through berms and firing out the other end
The geometry is great, unfortunately, the suspension isn’t!
The Stumpjumper could cover 90% or more of my rides.
Sporty but not race-yPinkbike
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Dec 2021 · Alicia Leggett
It's worth mentioning that the Stumpy EVO Alloy was the longest-travel bike we tested in the batch of 130mm to 150mm trail bikes this Field Test, so it's a bit more bike than anything else we're reviewing this week.
So, so adaptable - and the geo adjustments are easier than on some other bikes
SWAT box is the biggest and the best of the in-frame storage boxes out there
Good value and smart spec
Good crossover trail-enduro option
There's no true top-end build, and it would be so good to see more aluminum bikes with fancy spec options
A tad heavy if we're counting grams
Star ratchet issue with the rear hub prior to Field Test
Oct 2021 · Beta
Alloy never left, it just keeps showing up late

May 2021 · Jeremy Benson
The Stumpjumper EVO got a complete overhaul for 2021, taking it from a dedicated long and slack brawler to a genre-bending chameleon of a bike. 150mm FSR...
Highly adjustable geometry
Adaptable for terrain or riding style
SWAT storage
Plush suspension
Very stable and confident descender
Overkill for tame trails
Fox 36 Rhythm fork
Moderate weight

Mar 2021 · Blake Nielsen
‘Total control, unparalleled bump-eating suspension, and a fine-tunable geometry are hallmarks of the all-new Stumpjumper EVO Expert. ‘ Lofty words from Specialized to say the least! Long time [R] tester Blake Nielsen got his hands dirty onboard their new Swiss Army knife of bikes on everything he could, from home trails to Thredbo. Read on! Reviewer // Blake Nielsen Photos // Matt Staggs Let’s start nice and easy with your first impression of the Evo once it arrived at [R]evo’s […]
Nov 2020 · Spencer Johnson
The moment that Specialized revamped its venerated Stumpjumper for 2021, I was chomping at the bit to see what the redesigned trail bike was all about. My first introduction was to the Stumpjumper EVO Expert, a rowdy all-rounder that I absolutely loved. So, when I got a chance to test its sibling, the Stumpjumper Expert, I was eager to find out how it stacked up against the EVO. I had a hard time concealing my curiosity when I noticed that the Stumpjumper Expert was missing Specialized’s signature FSR suspension design. To save weight, the bike’s designers opted for a lightweight flex stay rather than the traditional chainstay pivot point. I was so keen to try it out that I immediately took it on a few small hot laps on the “test track” outside my apartment, which is, no joke, a stump I love to jump. I immediately knew the Stumpjumper Expert was ready for some of Galbraith Mountain’s rowdiest trails. Most of my favorite rides involve an hour or more of climbing before a quick, high-speed descent. So, as one could expect, I have a soft spot for bikes that climb exceptionally well. The new Stumpjumper Expert made my time climbing a joy. The kinematics of the 130-millimeter rear shock helped to keep the momentum moving forward, regardless of whether I was pedaling in or out of the saddle. I never felt the need to reach down and flip into “climb” mode on the Fox Float DPS Performance Elite shock while climbing. The suspension showed an excellent mix of traction-generating squish, while also delivering some zippy acceleration—something that was accentuated by the Specialized Purgatory rear tire. The seat angle was just steep enough to keep the bike balanced on steep, punchy climbs, even while seated.

Oct 2020
The latest Stumpjumper is less an overhaul and more an evolution but t's still been subject to many updates including a step away from the Horst Link suspension design we're used to seeing on the Stumpjumper model.

Oct 2020 · VeloNews.com
Specialized completely overhauls one of the most venerable mountain bike models, with alloy or carbon models to flatten trails and singletrack.

Oct 2020 · BHowell
Massive geometry and size updates along with a new suspension character bring the feature-rich Stumpjumper into the limelight.
| Frame | M5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel BB Standard: BSA, 73mm, Threaded |
|---|---|
| Fork | RockShox Recon RL, Motion Control damper with low-speed compression to lockout, 51mm offset, rebound adjust, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel Travel: 130mm |
| Shock | X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm Travel: 120mm |
| Bottom Bracket | SRAM Powerspline |
| Stem | Specialized, 3D-forged alloy, 4-bolt, 7-degree rise |
| Handlebar | Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, XS 720mm, S-XL 750mm, |
| Saddle | Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails |
| Seatpost | TransX dropper, 34.9mm, S: 125mm, M/L/XL: 150mm Travel Type: Dropper |
| Grips | Specialized Sip Grip, half-waffle, slip-on |
| Rear Derailleur | SRAM SX Eagle, 12-speed |
|---|---|
| Crank | SRAM SX Eagle, Powerspline, 170mm, Steel, 30T |
| Shifters | SRAM SX Eagle, trigger, 12-speed |
| Cassette | SRAM PG-1210 Eagle, 11-50t |
| Chain | SRAM SX Eagle, 12-speed |
| Brakes | Front: Tektro Gemini Comp, hydraulic disc, resin pad, 200mm, Rear: Tektro Gemini Comp, hydraulic disc, resin pad, 180mm Type: Tektro Gemini Hydraulic Disc |
| Rims | Double-wall alloy, 27mm internal width |
|---|---|
| Spokes | Stainless, 14g |
| Front Hub | Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h |
| Rear Hub | Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h |
| Tires | Front: Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3", Rear: Purgatory, GRID Casing, GRIPTON® compound, 29x2.3" |
First added November 6
Last updated October 9
Not listed for 2,087 days