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    TAMBORA G42025 Polygon
    Recommended
    MSRP
    $899
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    3.2
    Frame
    		Aluminum
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Clearance
    		45c
    		Tektro Mechanical Disc
    		microSHIFT Advent X
    Drivetrain
    		1 × 10
    Brand Site

    polygonbikes.com

    Summary
    		The Polygon TAMBORA G4 is an aluminum frame gravel bike with upper mid-range components and tektro mechanical disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    TAMBORA G4
    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)

    31 mph

    TAMBORA G4

    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 G42025 Polygon
    Frame

    aluminum

    BB Standard: BSA, 68mm, Threaded

    Tire Clearance: 45c

    Color: Broken White

    Fork

    CARBON RIGID

    Bottom Bracket

    THREADED BSA 68mm

    Headset

    TOKEN TK156SP-CHHC 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

    ALLOY SEATPOST, DXL: 27,2 x 350mm

    Type: Rigid

    Pedals

    Not Included

    Groupset
    Rear Derailleur

    MICROSHIFT ADVENT X M6205GM 10-SPEED

    Crank

    ALLOY 40T

    Shifters

    MICROSHIFT ADVENT X SB-M100, 1x10-SPEED BRIFTER

    Cassette

    MICROSHIFT ADVENT X CS-H104 10 SPEED 11-48T

    Chain

    KMC X10

    Brakes

    TEKTRO MD-C550 MECHANICAL

    Type: Tektro Mechanical Disc

    Brake Levers

    MICROSHIFT ADVENT X SB-M100

    Wheels
    Rims

    ALLOY DOUBLE WALL FV H: 19 622X23 32H TLR

    Spokes

    F: STAINLESS 14G NDS:290 & DS:294 W/ NIPPLE BRASS / R: STAINLESS 14G NDS:292 & DS:290 W/ NIPPLE BRASS

    Front Hub

    ALLOY DISC BRAKE 12x100mm 32H 6B

    Rear Hub

    ALLOY DISC BRAKE 12x142mm 32H 6B FOR SPROCKET

    Tires

    VEE RAIL 700x40C 622x40 TLR

    Disc Rotors

    TEKTRO 160mm 6B

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