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.
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
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
Stem:
Alloy Trail Stem, 35mm bar bore
Handlebars:
Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width
Tape:
Specialized Trail Grips
Saddle:
Body Geometry Bridge Saddle, steel rails
SeatPost:
TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm
Front Brake:
Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
Rear Brake:
Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
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
Rims:
Double-wall alloy, 27mm internal width, 28h
Front Hub:
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear Hub:
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
Spokes:
Stainless, 14g
Front Tire:
Butcher, GRID casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
Rear Tire:
Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"
Inner Tubes:
Standard, Presta Valve
* 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.
S1 | S2 | S3 | S4 | S5 | S6 | |
---|---|---|---|---|---|---|
Stack (Low BB) | 618mm | 613mm | 623mm | 631mm | 639mm | 649mm |
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 | 100mm | 110mm | 120mm | 130mm | 140mm |
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) | 334mm | 339mm | 339mm | 339mm | 339mm | 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) | 444mm | 444mm | 444mm | 444mm | 454mm | 454mm |
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) | 545mm | 563mm | 586mm | 615mm | 643mm | 676mm |
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° |
Max Seatpost Insertion | 190mm | 190mm | 210mm | 230mm | 250mm | 270mm |
Min Seatpost Insertion | 100mm | 100mm | 100mm | 100mm | 100mm | 100mm |