2020 Specialized Sj 29 Features
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.
Component Specifications
| 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 |
| 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 |
| Shift Levers | SRAM SX Eagle, trigger, 12-speed |
| Rear Derailleur | SRAM SX Eagle, 12-speed |
| Cassette | SRAM PG-1210 Eagle, 11-50t |
| Chain | SRAM SX Eagle, 12-speed |
| Crankset | SRAM SX Eagle, Powerspline, 170mm |
| Bottom Bracket | SRAM Powerspline |
| 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 |
| Spokes | Stainless, 14g |
| Front Tire | Butcher, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.6" |
| Rear Tire | Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" |
| Inner Tubes | Standard, Presta valve |
| 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 |
| Stem | Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise |
| Handlebars | Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, XS 720mm, S-XL 750mm, |
| Grips | Specialized Trail Grips |
| Saddle | Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails |
| 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 |
Size Guide: 2020 Specialized Sj 29
