Technical Specifications

Description
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. These numbers combine to make your ride more stable, more carvealicious, more comfortable climbing, more better everywhere. With FlipChip adjustability you’re able to 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, And by light, we mean real light: 2,250 grams (S-Works, S-3 size, with rear shock).











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, 38.6mm

Suspension

Fork RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel

Cockpit

Seat Post TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm

Saddle Body Geometry Bridge Saddle, steel rails

Stem Alloy Trail Stem, 35mm bar bore

GripsSpecialized Trail Grips

Handlebars Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width

Brakes

Front Brake Tektro Gemini Comp, hydraulic disc, resin pad, 200mm

Rear Brake Tektro Gemini Comp, hydraulic disc, resin pad, 180mm

Drivetrain

Shift Levers SRAM SX Eagle, trigger, 12-speed

Rear Derailleur SRAM SX Eagle, 12-speed

Cassette SRAM PG-1210 Eagle, 11-50t

Crankset SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm

Chain SRAM SX Eagle, 12-speed

Chain Ring 30T

Bottom Bracket SRAM Powerspline

Wheels & Tyres

Front Hub Specialized alloy front hub disc, sealed cardridge bearings, 6-bolt, 15x110mm thru-axle, 28h

Rear hub Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h

Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3" Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3"

Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3" Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"

Spokes Stainless, 14g

Tubes Standard, Presta Valve

Accessories

FAQs

Please read our FAQs page to find out more.

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What is included with a new bike purchase?

Every new bike purchase includes a basic setup so you are comfortable and ready to ride. We adjust your saddle height and make sure you can reach your brakes and shifters with ease.

What does Online Exclusive mean?

Online Exclusive items are not stocked on our showroom floor. They are ordered in from our supplier once you place your order and usually arrive within 7 days.

When will my bike be ready for pickup or delivery?

Once your bike arrives, our mechanics build and safety check it. We will notify you as soon as it is ready for pickup or prepared for home delivery.

Is the bike fully assembled?

Yes. All bikes are fully built, tuned and safety checked by our qualified mechanics before you receive them.

Do you offer delivery for bikes?

Yes. After your bike has been built and prepared, we can arrange home delivery. Courier fees vary depending on your location.

Can I book a bike fit?

Yes. We offer Retül Fit and Basic Fit services. Contact our showroom to book a session or visit this page to find out more about our fit services.