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Stumpjumper 29
2020 Stumpjumper 29
The Stumpjumper 29 combines the amazing ride quality and precision of our alloy sidearm chassis with plush RockShox suspension and a 12-speed SRAM SX Eagle drivetrain. Bottom line: It's a bike that outrides both its price tag...and bikes costing much more.
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.
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. It's total control.
MASSIVE BANG FOR YOUR BUCK
• RockShox 35 Gold RL fork and Deluxe Select shock erase rocks and roots.
• SX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.
• Roval Traverse 29er wheels roll over obstacles and maintain momentum with ease.
Technical 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, 140mm of travel
Seat Binder
Specialized bolt-type, alloy, 38.6mm
Suspension
Fork
RockShox 35 Gold RL, DebonAir, Motion Control damper with low-speed compression to lockout, 51mm offset, rebound adjust, 15x110mm Boost™ Maxle® Lite thru-axle, 150mm of travel
Rear Shock
RockShox Deluxe Select, Rx Trail Tune, rebound adjust, 210x50mm
Cockpit
SeatPost
X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L: 150mm, XL: 170mm
Stem
Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
Saddle
Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails
Handlebars
Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, S 720mm, M-XL 750mm
Grips
Specialized Trail Grips
Brakes
Front Brake
SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm
Rear Brake
SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm
Drivetrain
Rear Derailleur
SRAM SX Eagle, 12-speed
Shift Levers
SRAM SX Eagle, trigger, 12-speed
Cassette
SRAM PG-1210 Eagle, 11-50t
Crankset
SRAM SX Eagle, Powerspline, 170mm
Bottom Bracket
SRAM Powerspline
Chain
SRAM SX Eagle, 12-speed
Chainrings
Steel, 30T
Wheels & Tires
Rims
700C disc, double-wall alloy, pinned, 32h
Front Hub
Specialized, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear Hub
Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
Spokes
Stainless, 14g
Inner Tubes
Standard, Presta valve
Rear Tire
Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
Front Tire
Butcher, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
Accessories
Pedals
PEDAL, TEST RIDE PEDALS PROVIDED BY SPECIALIZED
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| S | M | L | XL | |
|---|---|---|---|---|
| Crank Length | 170mm | 170mm | 170mm | 170mm |
| Handlebar Width | 780mm | 780mm | 780mm | 780mm |
| Stem Length | 45mm | 45mm | 45mm | 45mm |
| Saddle Width | 155mm | 143mm | 143mm | 143mm |
| Seatpost Length | 375mm | 438mm | 438mm | 478mm |
| Stack | 619mm | 619mm | 642mm | 656mm |
| Reach | 405mm | 425mm | 445mm | 470mm |
| Head Tube Length | 100mm | 100mm | 125mm | 140mm |
| Head Tube Angle | 66.5° | 66.5° | 66.5° | 66.5° |
| BB Height | 341mm | 341mm | 341mm | 341mm |
| BB Drop | 33mm | 33mm | 33mm | 33mm |
| Trail | 107mm | 107mm | 107mm | 107mm |
| Fork Length, Full | 560mm | 560mm | 560mm | 560mm |
| Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm |
| Front Center | 716mm | 736mm | 766mm | 797mm |
| Chainstay Length | 437mm | 437mm | 437mm | 437mm |
| Wheelbase | 1151mm | 1171mm | 1201mm | 1232mm |
| Top Tube Length, Horizontal | 573mm | 597mm | 628mm | 662mm |
| Bike Standover Height | 756mm | 762mm | 775mm | 776mm |
| Seat Tube Length | 380mm | 410mm | 455mm | 505mm |
| Seat Tube Angle | 74.8° | 74.5° | 74.1° | 73.7° |
Manual Downloads
Rider Reviews
- 4.5
- 6 Reviews