Bike Comparison
    MSRP
    $2,800$2,199
    Where to Buy
    $2,800

    At Specialized

    $1

    At

    Category
    TrailEnduro
    Weight
    35.1 lbs33.5 lbs
    4.9
    5.0
    AluminumAluminum
    Fork
    RockShox 35 SilverFox Rhythm Float 34
    Shock
    X-FusionFox Float DPS Performance
    Wheels
    AluminumAluminum
    29″27.5″ / 29″
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    SX EagleSLX, Shimano
    Drivetrain
    1 × 121 × 12
    Suspension
    FullFull
    Front Travel
    140mm150mm
    Rear Travel
    130mm135mm
    Brand Site

    specialized.com

    polygonbikes.com

    Summary
    The Specialized Stumpjumper Alloy is a 29″ aluminum frame full suspension trail bike with upper mid-range components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Stumpjumper Alloy
    SISKIU T8
    Other Trail bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    24 mph

    Stumpjumper Alloy

    25 mph

    SISKIU T8

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    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

    BB StandardBSA, 73mm, Threaded

    Hanger StandardUDH

    ColorSatin Redwood / Rusted Red

    aluminum

    BB StandardBSA, 73mm, Threaded

    Hanger StandardUDH

    ColorSatin Redwood / Rusted Red

    Fork

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

    Travel150mm

    Spring TypeAir

    FOX 34 RHYTHM 150mm (27.5") / 140mm (29") TRAVEL

    Travel150mm

    Spring TypeAir

    Shock

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

    FOX FLOAT DPS SPECIAL TUNING E2E:210X55MM, HARDWARE:8MMX25MM

    Bottom Bracket

    SRAM Powerspline

    SHIMANO 2-PIECE CRANKSET BSA THREADED

    Headset

    ZERO STACK (ZS) SEALED BEARING FOR TAPER HEAD TUBE, ZS 44/28.6 | ZS 56/40

    Stem

    Alloy Trail Stem, 35mm bar bore

    Entity Xpert, Alloy, 35mm

    Handlebar

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

    ENTITY XPERT, ALLOY W:780MM R:20MM BB:35MM

    Saddle

    Body Geometry Bridge Saddle, steel rails

    ENTITY XTENT

    Seatpost

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

    TRANZ-X 150MM (S-M) 170 (L-XL) TRAVEL, ZERO OFFSET, 30.9MM

    Pedals

    ALLOY FLAT PEDAL W / REPLACEABLE PIN & REFLECTOR

    Grips

    Specialized Trail Grips

    Polygon Lock On

    Groupset
    Rear Derailleur

    SRAM SX Eagle, 12-speed

    SHIMANO SLX RD-M7100-SGS DIRECT ATTACH

    Crank

    SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm, 30T

    SHIMANO MT-510-1 BOOST 32T

    Shifters

    SRAM SX Eagle, trigger, 12-speed

    SHIMANO SLX SL-M7100-R, 1x12-SPEED TRIGGER

    Cassette

    SRAM PG-1210 Eagle, 11-50t

    12 SPEED 11-51T

    Chain

    SRAM SX Eagle, 12-speed

    KMC X12 12SPEED

    Brakes

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

    TEKTRO HD-M745 4-PISTONS HYDRAULIC DISC BRAKES

    Brake Levers

    TEKTRO LEVER

    Wheels
    Rims

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

    584 / 622-35 32H FOR TYRE 584 / 622-54/76 TUBELESS READY

    Spokes

    Stainless, 14g

    Front Hub

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

    Novatech D91SB-CL, Thru Axle 15x110mm 32h, Center Lock

    Rear Hub

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

    Novatec D462SB, 12x148mm, HG Freehub, 32h, Center Lock

    Tires

    Front: Butcher, GRID casing, GRIPTON® T7 compound, 29x2.3", Rear: Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"

    PERFORMANCE TIRE, 27.5”X2.40” / 29”X2.40”

    Disc Rotors

    SHIMANO SM-RT54 180mm CENTER-LOCK

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