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    TAMBORA G8X2025 Polygon
    Recommended
    MSRP
    $2,999
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    8.0
    Frame
    		Carbon
    		Carbon
    Wheels
    		Carbon
    Wheel Size
    		700c
    		SRAM Rival Hydraulic Disc
    		Rival XPLR AXS, Rival AXS
    Drivetrain
    		1 × 12 Electronic
    Brand Site

    polygonbikes.com

    Summary
    		The Polygon TAMBORA G8X is a carbon frame gravel bike with upper mid-range components and sram rival hydraulic disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    TAMBORA G8X
    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)

    35 mph

    TAMBORA G8X

    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 G8X2025 Polygon
    Frame

    carbon

    BB Standard: T47, Threaded

    Hanger Standard: UDH

    Color: Maroon Brown

    Fork

    CARBON RIGID

    Bottom Bracket

    SRAM DUB T47

    Headset

    TOKEN TK155SP-36 W/ SEALED BEARING

    Stem

    Entity Expert, 31.8mm Clamp, 7-Degree, 90mm (S,M) / 100mm (L, XL)

    Handlebar

    ALLOY FLARE 16degree, W: 420mm (S, M) / 440mm (L, XL), BB: 31,8mm, R/D: 125mm, B/R: 77mm

    Saddle

    SELLE ITALIA MODEL X

    Seatpost

    CARBON, DXL: 27,.2 x 300mm (S,M,L) / 27.2 x 350mm (XL)

    Type: Rigid

    Groupset
    Rear Derailleur

    SRAM RIVAL XPLR ETAP AXS 12-SPEED

    Crank

    SRAM RIVAL 1 WIDE 40T

    Shifters

    SRAM RIVAL ETAP AXS 12-SPEED BRIFTER

    Cassette

    SRAM XG-1251 12 SPEED 10-44T XDR

    Chain

    SRAM RIVAL 12-SPEED

    Brakes

    SRAM RIVAL HYDRAULIC DISC

    Type: SRAM Rival Hydraulic Disc

    Brake Levers

    SRAM RIVAL

    Wheels
    Rims

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

    Front Hub

    NOVATEC D791 12x100mm 24H CL

    Rear Hub

    NOVATEC D792 12x142mm 24H CL FOR XDR

    Tires

    700x40C 622x40 TLR

    Disc Rotors

    SRAM PACELINE 160mm CL

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