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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, it's your all-access pass for trail adventure.
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
Rear Shock
X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm
Cockpit:
Stem
Alloy Trail Stem, 35mm bar bore
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, 780mm width
Tape
Specialized Trail Grips
Saddle
Body Geometry Bridge Saddle, steel rails
Brakes:
Front Brake
Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
Rear Brake
Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
Drivetrain:
Chain
SRAM SX Eagle, 12-speed
Chainrings
Steel, 30T
Shift Levers
SRAM SX Eagle, trigger, 12-speed
Crankset
SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm
Rear Derailleur
SRAM SX Eagle, 12-speed
Bottom Bracket
SRAM Powerspline
Cassette
SRAM PG-1210 Eagle, 11-50t
Wheels:
Inner Tubes
TUBES,STANDARD 48MM PV LOW LEAD 29x1.75/2.4, MAXXIS BRAND
Spokes
Stainless, 14g
Rear Tire
Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"
Rims
Double-wall alloy, 27mm internal width, 28h
Front Tire
Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3"
Front Hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear Hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 32h
Size | S1 | S2 | S3 | S4 | S5 | S6 |
---|---|---|---|---|---|---|
Crank Length | 165 | 170 | 170 | 170 | 170 | 175 |
Handlebar Width | 780 | 780 | 780 | 780 | 780 | 780 |
Stem Length | 40 | 40 | 40 | 40 | 50 | 50 |
Saddle Width | 155 | 155 | 143 | 143 | 143 | 143 |
Seatpost Length | 100 | 125 | 150 | 170 | 170 | 200 |
Stack (Low BB) | 618 | 613 | 623 | 631 | 639 | 649 |
Stack (High BB) | 614 | 609 | 618 | 627 | 640 | 644 |
Reach (Low BB) | 410 | 430 | 450 | 475 | 500 | 530 |
Reach (High BB) | 416 | 435 | 455 | 480 | 505 | 535 |
Headtube Length | 100 | 100 | 110 | 120 | 130 | 140 |
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) | 327 | 332 | 332 | 332 | 332 | 332 |
BB Height (High BB) | 334 | 339 | 339 | 339 | 339 | 339 |
BB Drop (Low BB) | 47 | 42 | 42 | 42 | 42 | 42 |
BB Drop (High BB) | 40 | 35 | 35 | 35 | 35 | 35 |
Trail (Low BB) | 126 | 126 | 126 | 126 | 126 | 126 |
Trail (High BB) | 122 | 122 | 122 | 122 | 122 | 122 |
Fork Length (full) | 550 | 550 | 550 | 550 | 550 | 550 |
Fork Rake/Offset | 44 | 44 | 44 | 44 | 44 | 44 |
Front Center | 726 | 746 | 770 | 799 | 828 | 863 |
Chainstay Length (Low BB) | 444 | 444 | 444 | 444 | 454 | 454 |
Chainstay Length (High BB) | 440 | 440 | 440 | 440 | 450 | 450 |
Wheelbase (Low BB) | 1168 | 1188 | 1212 | 1241 | 1280 | 1315 |
Wheelbase (High BB) | 1164 | 1184 | 1208 | 1237 | 1276 | 1311 |
Top-tube Length (horizontal) | 545 | 563 | 586 | 615 | 643 | 676 |
Bike Standover Height | 742 | 742 | 750 | 753 | 777 | 784 |
Seat Tube Length | 385 | 385 | 405 | 425 | 445 | 465 |
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 | 190 | 190 | 210 | 230 | 250 | 270 |
Min Seatpost Insertion | 100 | 100 | 100 | 100 | 100 | 100 |