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The Specialized Stumpjumper ST Alloy 29 full suspension mountain bike is incredibly versatile with bigger 29er wheels for improved roll over obstacles and maintaining momentum.
The Specialized Stumpjumper ST Alloy 29 full suspension mountain bike is incredibly versatile with bigger 29er wheels for improved roll over obstacles and maintaining momentum.
Specialized

Specialized Stumpjumper ST Alloy 29 FS Mountain Bike 2020 in Black

£1,899.00
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1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

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We are unable to offer a refund without a valid receipt.

Specialized Stumpjumper ST Alloy 29 FS Mountain Bike 2020 in Black

Season:2020

Brand:Specialized

Code:262660287574

The Specialized Stumpjumper ST Alloy 29 full suspension mountain bike is incredibly versatile with bigger 29er wheels. It's a great bike for riders seeking both efficiency and capability with affordable components that are big on performance and light on the wallet.

The innovative sidearm frame design makes a lighter better-handling bike and by directly connecting all three mounting points of the rear-end and shock to the frame Specialized have increased both stiffness and performance over bumps. The end result is a great trail bike with total control.

This ST 29 is spec'd with 29er wheels which roll over obstacles and maintain your momentum with ease.

Key Features and Benefits

  • 29 inch wheels, for smoother rolling.
  • 130mm suspension front and rear, for smooth riding on rough terrain.
  • SRAM SX Eagle drivetrain, gives single ring simplicity.

Full Specification

  • 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
  • Rear Shock:  X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm
  • 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
  • Number of Gears:  12
  • Gear Shifters:  SRAM SX Eagle, trigger, 12-speed
  • Chainset:  SRAM SX Eagle, Powerspline, 170mm
  • Chainrings:  Steel, 30T
  • Rear Cassette:  SRAM PG-1210 Eagle, 11-50t
  • Chain:  SRAM SX Eagle, 12-speed
  • Front Derailleur:  N/A
  • Rear Derailleur:  SRAM SX Eagle
  • Bottom Bracket:  SRAM Powerspline
  • Pedals:  Specialized Dirt
  • Rims:  Double-wall alloy, 27mm internal width
  • Front Hub:  Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
  • Rear Hub:  Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
  • Front Tyre:  Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
  • Rear Tyre:  Purgatory, GRID Casing, 2Bliss Ready, 29x2.3"
  • Brakes:  Tektro Gemini Comp, hydraulic disc, resin pad, 200mm front, 180mm rear
  • Handlebars:  Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
  • Handlebar Grips:  Specialized Sip Grip, half-waffle, slip-on
  • Headset:  Not Available
  • Stem:  Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
  • 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
  • Accessories:  N/A
  • Weight:  Not Available

Mountain Bike Sizing Guide

Mountain Bikes tend to use the T-Shirt sizing of S, M, L etc. or will have the seat tube measurement in INCHES. Why mountain bikes are inches and road bikes are CM who knows, but the part of the frame being measured is the same.

As a rule of thumb if you can identify your size as Medium on one brand, you should use that as a starting point on another brand too.

If you already own a medium mountain bike for example and are comfortable with the sizing, start there.
 

What is your height? Your suggested bicycle size
Feet/Inches Centimetres Suggested Size
4'10" - 5'2" 148cm - 158cm X-Small (14-15")
5'2" - 5'6" 158cm - 168cm Small (15.5-17")
5'6" - 5'10" 168cm - 178cm Medium (17.5-18")
5'10" - 6'1" 178cm - 185cm Large (18.5-20")
6'1" - 6'4" 185cm - 193cm X-Large (20.5-22")
6'4" - 6'6" 193cm - 198cm XX-Large (22.5"+)


 

If you need any more advice on bike sizing for mountain bikes please contact us and we can help you make the right choice.

Technical Information
  • 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
  • REAR SHOCK
    X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm
  • FRONT HUB
    Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
  • REAR HUB
    Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
  • SPOKES
    Stainless, 14g
  • RIMS
    Double-wall alloy, 27mm internal width
  • INNER TUBES
    Standard, Presta valve
  • FRONT TYRE
    Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
  • REAR TYRE
    Purgatory, GRID Casing, 2Bliss Ready, 29x2.3"
  • CRANKSET
    SRAM SX Eagle, Powerspline, 170mm
  • CHAINRINGS
    Steel, 30T
  • BOTTOM BRACKET
    SRAM Powerspline
  • SHIFT LEVERS
    SRAM SX Eagle, trigger, 12-speed
  • REAR DERAILLEUR
    SRAM SX Eagle
  • CASSETTE
    SRAM PG-1210 Eagle, 11-50t
  • CHAIN
    SRAM SX Eagle, 12-speed
  • FRONT BRAKE
    Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
  • REAR BRAKE
    Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
  • HANDLEBARS
    Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
  • GRIPS
    Specialized Sip Grip, half-waffle, slip-on
  • STEM
    Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
  • 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
  • SEAT BINDER
    Specialized bolt-type, alloy, 38.6mm
  • PEDALS
    Specialized Dirt
Sizing Information
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