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    TAMBORA A9X2025 Polygon
    Recommended
    MSRP
    $3,999
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    8.6
    Frame
    		Carbon
    		Carbon
    Wheels
    		Carbon
    Wheel Size
    		700c
    		Shimano GRX 800 Hydraulic Disc
    		GRX 800, GRX Di2
    Drivetrain
    		2 × 12 Electronic
    Brand Site

    polygonbikes.com

    Summary
    		The Polygon TAMBORA A9X is a carbon frame gravel bike with high-end components and shimano grx 800 hydraulic disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    TAMBORA A9X
    Other Gravel 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)

    38 mph

    TAMBORA A9X

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    TAMBORA A9X2025 Polygon
    Frame

    carbon

    BB Standard: T47, Threaded

    Color: Black

    Fork

    CARBON RIGID

    Bottom Bracket

    TOKEN T47 FOR 24mm SPINDLE

    Headset

    TOKEN TK155P-36 W/ SEALED BEARING, IS 52/28.6 | IS 52/40

    Handlebar

    BLKTEC R8 INTEGRATED, W: 400mm (S, M) / 420mm ( L, XL), BB: 31.8mm INTEGRATED, R/D: 125mm, B/R: 72mm

    Saddle

    FIZIK TERRA ARGO X7

    Seatpost

    CARBON, DxL: 27.2x400mm

    Type: Rigid

    Groupset
    Rear Derailleur

    SHIMANO GRX Di2 RD-RX825

    Crank

    SHIMANO GRX FC-RX820, 48x31T

    Shifters

    SHIMANO GRX Di2 ST-RX825, 2x12-SPEED BRIFTER

    Cassette

    SHIMANO ULTEGRA CS-R8101, 11-34T

    Chain

    KMC NEW X-12

    Brakes

    SHIMANO GRX RX825 HYDRAULIC DISC

    Type: Shimano GRX 800 Hydraulic Disc

    Brake Levers

    SHIMANO RX825

    Wheels
    Rims

    F: CARBON FV H: 28 622x24 24H FOR TYRE 622-35/68 TLR / R: CARBON FV H: 28 622x24 24H FOR TYRE 622-35/68 TLR

    Spokes

    F: STAINLESS DOUBLE BUTTED 14G NDS:282mm DS:284mm W/ NIPPLE BRASS / R: STAINLESS DOUBLE BUTTED 14G NDS:284mm DS:282mm W/ NIPPLE BRASS

    Front Hub

    NOVATEC D791SB 12x100mm 24H CL

    Rear Hub

    NOVATEC D792SB 12x142mm 24H CL FOR CASSETTE SPROCKET

    Tires

    MAXXIS RE-FUSE 700X32C

    Disc Rotors

    SHIMANO CL800, 160mm

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