2020 Specialized
Stumpjumper 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 | Hydraulic Disc |
| Seatpost | Dropper |
For This Bike
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
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
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 […]
Feb 2021 · Travis Engel
The ideal balance between value and quality, the Stumpjumper Comp Alloy is a mid-travel 29er thats ready to rock out of the box.
Smart spec
Perfect geometry for the category
6 sizes, including XS and XXL
Just barely outside the "budget" category
Rattly dropper cable
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 · Bturman
Further refinement, greater adjustability, and 10mm of additional travel highlight the new Stumpjumper EVO – a bike Specialized is calling 'The Ultimate Trail Bike.' From park laps to big pedal missions, Vital tested it in a wide variety of terrain.
Oct 2020
The EVO has always been the radical offshoot of the regular Stumpjumper. For 2021 though, Specialized has evolved its approach, creating a standalone model that it calls the 'Ultimate Trail Bike'. What's changed? And how does it ride? Read on for our review of the all-new 2021 Specialized Stumpjumper EVO Expert.
Insanely floaty suspension performance
User-friendly adjustable geometry
The new SWAT accessories are brilliant
Highly adjustable fork and shock package
Code RS stoppers deliver enormous braking power
Overall attention to detail
The sticky rubber and suspension are draggy
Rear tyre is on the light side for a hard-charging bike like this
We'd like to see a Star Ratchet freehub at this price
| 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: 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" |
Last updated October 9
Not listed for 1,291 days