2020 Specialized

Men's Stumpjumper ST Expert 27.5

A 27.5″ carbon frame full suspension trail bike with high-end components.

MSRP$5,000
FrameCarbon
SuspensionFull, 130 / 130mm
ForkRockShox Pike RC
ShockRockShox Deluxe RT3
Wheels27.5″ Carbon
Drivetrain1 × 12
GroupsetGX Eagle, Truvativ Descendant
BrakesHydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Men's Stumpjumper ST Expert 27.5
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

26 mph

Men's Stumpjumper ST Expert 27.5

26 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews
Beta
The Beta Tests: Specialized Stumpjumper S-Works

Mar 2021 · Simon Stewart

More Epic than Enduro, this new Stumpjumper is a thoroughbred speed machine.

Highs
  • Lively and responsive

  • Precise handling

  • Lightweight

Lows
  • Not as versatile as previous Stumpjumpers

  • Unforgiving of poor setup

  • Flex stays only available on carbon models

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Revolution Mountain Bike Magazine
[R]eviewed // Specialized Stumpjumper Evo Expert

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 […]

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off.road.cc
2021 Specialized Stumpjumper Expert review

Dec 2020

The 2021 Specialized Stumpjumper Expert is a completely refreshed model with updated geometry and – on the carbon models – a new suspension platform with flex stays instead of a lower pivot. In this spec it's an incredible all rounder, though the price is undeniably steep. I guess you do get SWAT, though...

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Pinkbike
Field Test: 2021 Specialized Stumpjumper - The Do It All 'Er

Dec 2020 · Mike Levy

The 2021 Stumpjumper gets an all-new frame design, and that translates to a big difference out on the trail.

Highs
  • Impossibly well-rounded. Want to cover all the miles? Sure. Want to ride stupid stuff? Be smart and sure.

  • Riders who recognize and appreciate a fast, energetic-feeling bike are going to love the new Stumpy.

Lows
  • When push comes to shove on hectic trails, the Stumpy isn’t as much of a bike as the Salsa, P-Train, etc. It’s not meant to be, though

Read Review

Freehub
Bike Review | 2021 Specialized Stumpjumper Expert

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.

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BikeRadar
2021 Specialized Stumpjumper Expert first ride review

Oct 2020 · Alex Evans

Specialized’s standard Stumpjumper hopes to please the masses with revised geometry and updated specs

Highs
  • Great fun to ride on bridleways and tamer trails

  • Good balance between price and performance

Lows
  • Dropper post travel inadequate

  • Be good to see option to spec a Fox 36, RockShox Pike or Lyrik because the Fox 34 lets the bike down once the trails get tougher

Read Review

NSMB
2021 Specialized Stumpjumper

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.

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VeloNews
Specialized Stumpjumper — the lightest ever — rips the trails again

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.

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

FACT 11m, full carbon chassis and rear end, asymmetrical design, 27.5 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel

BB StandardBSA, 73mm, Threaded

Fork

RockShox Pike RC, DebonAir, rebound / low-speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 130mm of travel

Travel130mm

Spring TypeAir

Shock

RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 190x45.0mm

Travel130mm

Spring TypeAir

Bottom Bracket

SRAM GXP

Stem

Specialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm

Handlebar

Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp

Saddle

Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm

Seatpost

Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S: 130mm, M/L/XL: 160mm of travel

TypeDropper

Pedals

Specialized Dirt

Grips

Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

Groupset
Rear Derailleur

SRAM GX Eagle, 12-speed

Crank

Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle, 32T

Shifters

SRAM GX Eagle, trigger, 12-speed

Cassette

SRAM GX Eagle, 12-speed, 10-50t

Chain

SRAM GX Eagle, 12-speed

Brakes

Front: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm, Rear: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm

TypeHydraulic Disc

Wheels
Rims

Roval Traverse Carbon 27.5, hookless carbon, 30mm inner width, tubeless ready, hand-built

Spokes

DT Swiss Industry

Front Hub

Specialized, sealed cartridge bearings, 15x110mm spacing, 28h

Rear Hub

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h

Tires

Front: Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3", Rear: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"

Rider Notes
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Last updated July 8
Not listed for 1,355 days