Stumpjumper Alloy

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).

Technical Specifications

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

Rear Shock

X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm

Fork

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

Cockpit

Saddle

Body Geometry Bridge Saddle, steel rails

SeatPost

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

Stem

Alloy Trail Stem, 35mm bar bore

Grips

Specialized 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

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

Crankset

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

Chainrings

30T

Bottom Bracket

SRAM Powerspline

Wheels & Tires

Rims

Double-wall alloy, 27mm internal width, 28h

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

Front Tire

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

Rear Tire

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

Spokes

Stainless, 14g

Inner Tubes

Standard, Presta Valve

Weight

15.93kg (35 lb, 1.9 oz)

Weight Size

* 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

	S1	S2	S3	S4	S5	S6
Crank Length	165mm	170mm	170mm	170mm	170mm	175mm
Handlebar Width	780mm	780mm	780mm	780mm	780mm	780mm
Stem Length	40mm	40mm	40mm	40mm	50mm	50mm
Saddle Width	155mm	155mm	143mm	143mm	143mm	143mm
Seatpost Length	100mm	125mm	150mm	170mm	170mm	200mm
Max Seatpost Insertion	190mm	190mm	210mm	230mm	250mm	270mm
Stack (Low BB)	618mm	613mm	623mm	631mm	639mm	649mm
Min Seatpost Insertion	100mm	100mm	100mm	100mm	100mm	100mm
Stack (High BB)	614mm	609mm	618mm	627mm	640mm	644mm
Reach (Low BB)	410mm	430mm	450mm	475mm	500mm	530mm
Reach (High BB)	416mm	435mm	455mm	480mm	505mm	535mm
Headtube Length	100mm	110mm	120mm	130mm	140mm	100mm
Headtube Angle (Low BB)	65°	65°	65°	65°	65°	65°
Headtube Angle (High BB)	65.5°	65.5°	65.5°	65.5°	65.5°	65.5°
BB Height (Low BB)	327mm	332mm	332mm	332mm	332mm	332mm
BB Height (High BB)	339mm	339mm	339mm	339mm	334mm	339mm
BB Drop (Low BB)	47mm	42mm	42mm	42mm	42mm	42mm
BB Drop (High BB)	40mm	35mm	35mm	35mm	35mm	35mm
Trail (Low BB)	126mm	126mm	126mm	126mm	126mm	126mm
Trail (High BB)	122mm	122mm	122mm	122mm	122mm	122mm
Fork Length (full)	550mm	550mm	550mm	550mm	550mm	550mm
Fork Rake/Offset	44mm	44mm	44mm	44mm	44mm	44mm
Front Center	726mm	746mm	770mm	799mm	828mm	863mm
Chainstay Length (Low BB)	454mm	454mm	444mm	444mm	444mm	444mm
Chainstay Length (High BB)	440mm	440mm	440mm	440mm	450mm	450mm
Wheelbase (Low BB)	1168mm	1188mm	1212mm	1241mm	1280mm	1315mm
Wheelbase (High BB)	1164mm	1184mm	1208mm	1237mm	1276mm	1311mm
Top-tube Length (horizontal)	676mm	545mm	563mm	586mm	615mm	643mm
Bike Standover Height	742mm	742mm	750mm	753mm	777mm	784mm
Seat Tube Length	385mm	385mm	405mm	425mm	445mm	465mm
Seat Tube Angle (Low BB)	77.7°	77.7°	77.5°	77.2°	77°	76.9°
Seat Tube Angle (High BB)	78.2°	78.2°	77.9°	77.7°	77.5°	77.3°

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Specialized Stumpjumper Alloy