Specialized Stumpjumper Alloy Bike – 2023

SPECIALIZED STUMPJUMPER ALLOY BIKE – 2023

The Stumpjumper Alloy brings all-new suspension kinematics and progressive geometry into a full-alloy package that’s both lightweight and extremely durable. Outfitted with a no-fuss SRAM SX 12-speed groupset, the Stumpjumper Alloy is your all-access pass for trail adventure.

THE TRAIL BENCHMARK — When we set out to design the all-new Stumpjumper, we pursued some hefty goals. It had to excel on any kind of trail, for every style of rider. To achieve that, we went after serious weight reduction without sacrificing durability, a stiff, responsive chassis that still rides light and lively, geometry that improves everyone’s riding, and the best suspension kinematics we know how to design. Turns out, you can have your cake and eat it too with the new Stumpjumper. 

THE SWEETEST 130MM OF TRAVEL YOU’LL EVER RIDE — We massaged the kinematics of the Stumpjumper suspension to bring out the very best all-round performance possible in a 130mm package. Countless hours of suspension lab development and field testing created a refined mid-travel ripper that eats big terrain like a gravity fed beast, handles like a dream everywhere, and climbs like it has a motor.

PROGRESSIVE GEOMETRY — The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. It’s long, low and slack, with a short offset fork and a steeper seat tube angle. With FlipChip adjustability, you can further fine-tune your fit, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose.

RIDER-FIRST ENGINEERED™ — Rider-First Engineered™ frames use a size-specific approach to ride characteristics that ensures benchmark handling and flawless performance, regardless of frame or rider size. Whether you’re a jump-happy grom riding an S1, or a DH-fiend giant in need of the lengthy S6, you’ll experience the same ride traits – rail-sharp cornering and balanced front and rear stiffness – at the lightest-possible weight: 2,250 grams (S-Works, S-3 size, with rear shock).

FEATURES

WHEELS

• Front Tire: Butcher, GRID casing, GRIPTON® compound, 29×2.3″
• Rear Tire: Purgatory, GRID Casing, GRIPTON® compound, 29×2.3″
• Rims: Roval 29, hookless alloy, 30mm inner width, tubeless ready
• Front Hub: Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
• Inner Tubes: Standard, Presta valve
• Rear Hub: Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h

COCKPIT

• Saddle: Body Geometry Bridge Saddle, steel rails
• Seatpost: TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm
• Handlebars: Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 800mm width
• Tape: Specialized Trail Grips
• Stem: Alloy Trail Stem, 35mm bar bore

DRIVETRAIN

• Chainrings: 40T
• Crankset: SRAM SX Eagle, DUB, S1:165mm, S2-S5: 170mm, S6: 175mm
• Rear Derailleur: SRAM SX Eagle, 12-speed
• Shift LEvers: SRAM SX Eagle, trigger, 12-speed
• Cassette: SRAM PG-1210 Eagle, 11-50t
• Chain SRAM SX Eagle, 12-speed
• Bottom Bracket: SRAM Powerspline

FRAMESET

• Frame: Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
• Seat Binder: Alloy, 38.6

BRAKES

• Front: Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
• Rear: Tektro Gemini Comp, hydraulic disc, resin pad, 180mm

WHEELS & TIRES

• Spokes: Stainless, 14g