Image of Specialized Stumpjumper ST Alloy 29
2020

Specialized Stumpjumper ST Alloy 29

Specialized Stumpjumper 2020

2900

Enduro Trail

At a glance

The 2020 Specialized Stumpjumper ST Alloy 29 is a Enduro and Trail mountain bike. It sports 29" wheels, is priced at $2,900 AUD, has RockShox suspension and a SRAM drivetrain. The bike is part of Specialized's Stumpjumper range of mountain bikes.

- Our Stumpjumper ST models are snappy and nimble, yet Incredibly versatile—the perfect rigs for riders seeking both efficiency and capability. The Stumpjumper ST Alloy 29 makes that winning combo affordable, with components that are big on performance and small on dollar signs. THE ULTIMATE TRAIL BIKE The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we’ve increased both stiffness and performance over bumps. End result?

Total control. PERFECTLY-BALANCED SUSPENSION Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike’s kinematics. We call this Rx Tune and while it’s not the easy way to build a suspension bike, it’s worth it. You feel Rx Tune as perfectly-balanced suspension. SMART PARTS PICK

- 29er wheels roll over obstacles and maintain your momentum with ease.

- 130-millimeters of suspension courtesy of a RockShox Recon RL fork.

- SX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.

Where To Buy

Reviews

Specifications

Frameset
  • 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
  • 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
  • Shock
    X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm
Wheels
  • Hubs
    [F] Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h [R] Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
  • Wheels
    Double-wall alloy, 27mm internal width
  • Wheel Size
    29"
  • Spokes
    Stainless, 14g
  • Tires
    [F] Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" [R] Purgatory, GRID Casing, 2Bliss Ready, 29x2.3"
Drivetrain
  • Chain
    SRAM SX Eagle, 12-speed
  • Crank
    SRAM SX Eagle, Powerspline, 170mm
  • Bottom Bracket
    SRAM Powerspline
  • Rear Derailleur
    SRAM SX Eagle
  • Shifters
    SRAM SX Eagle, trigger, 12-speed
  • Cassette
    SRAM PG-1210 Eagle, 11-50t
  • Pedals
    Specialized Dirt
Components
  • Brakeset
    [F] Tektro Gemini Comp, hydraulic disc, resin pad, 200mm [R] Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
  • Handlebar
    Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
  • 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
  • Stem
    Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

FAQ

Q: How much is a 2020 Specialized Stumpjumper ST Alloy 29?

A 2020 Specialized Stumpjumper ST Alloy 29 is typically priced around $2,900 AUD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: What size wheels does the 2020 Specialized Stumpjumper ST Alloy 29 have?

The 2020 Specialized Stumpjumper ST Alloy 29 has 29" wheels.

Q: What size 2020 Specialized Stumpjumper ST Alloy 29 should I get?

After measuring your height, use the size chart below to find the typical Specialized Stumpjumper ST Alloy 29 size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm)Rider Height (in)Frame Size
148cm - 158cm4'10" - 5'2"XS
158cm - 168cm5'2" - 5'6"S
168cm - 178cm5'6" - 5' 10"M
178cm - 185cm5'10" - 6'1"L
185cm - 193cm6'1" - 6'4"XL
193cm - 198cm6'4" - 6'6"XXL

Discussion

0 Replies

No comments on this bike yet.

Leave a Reply

Your email address will not be published.

Deals View All

Recent Posts View All

Blackburn Honest Digital Pressure Gauge Review
Blackburn Honest Digital Pressure Gauge Review

It's 2020 people. The squeeze and bounce test doesn't cut it anymore (and this is…

Read More
Comparing Mountain Bikes
Comparing Mountain Bikes

Mountain Bikes are complicated machines. They have parts from hundreds of different manufacturers, come in…

Read More
Undomestic Mountain Bikes: Here’s what we know
Undomestic Mountain Bikes: Here’s what we know

Update March 2020: Undomestic has announced that they are manufacturing frames "at this moment" and…

Read More