Unveil the Tambora​

Swift Adventures Unlocked in One Bike
Drawing inspiration from the birth of bicycles, sparked by the largest volcanic eruption in recorded history, Mount Tambora, we've looked back and reminded ourselves and the world of this history by creating the Polygon Tambora A – a perfect fusion of all-road and gravel capabilities in one extraordinary ride. Designed for versatility, the Tambora A features a short wheelbase, making it an agile companion for all-road exploration. Equipped with a 2-by drivetrain, it offers enhanced versatility and a wide range of gears, empowering us to conquer any terrain with newfound speed.​ ​Whether you're a competitive racer, long-distance enthusiast, or an adventurous explorer, this bike is tailored to meet your needs.
GRAVEL ?
GRAVEL ?
Ah, nothing compares to the peace of the less-passed road. Whether it's racing and conquering mixed terrains, bikepacking with friends, or following the bike path and getting lost; we'll get you ready with our incredible fast, comfortable, and versatile gravel bikes. Come on, all the things that you want in the world are way out there. Let's go find them. See more...
Polygon Tambora A9X Gravel Bike Black

TAMBORA A9X

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  • SKU : 503339

Features

  • Powerful Speed and Unwavering Stability

    Experience the ultimate ride that combines power and speed with unwavering stability. The wheelbase length ensures stability, while the precise head tube angle instills confidence in your steering and control. No need to compromise between speed, stability, and confidence—now, the choice is in your hands.​

  • Conquer Diverse Terrains with Ample Tire Clearance

    Accomodating up to 35c of tire for a short position flip chip and 45c for a long position flip chip.

  • Free to Choose in a Flip of a Switch​

    Where you can switch between speed and agility from a short position flip chip or stability and control from a long position flip chip.

  • Experience Effortless Performance with 2-by Drivetrain​

    Tailored for those who crave performance on extended, fast-paced all-road adventures, the 2-by drivetrain offers a broad range of gears, ensuring effortless cruising on flats with precision control. It delivers the perfect balance of power, agility, and efficiency for long-distance rides.​

  • Enjoy our First Generation of Carbon Gravel Bike​

    Introducing our first carbon gravel bike – Tambora A. Experience seamless power transfer at high speeds and become one with the ride.​

Specification

  • Frameset
    Frameset

    ACX GRAVEL

    Fork

    CARBON RIGID

    Size

    S, M, L, XL

    Frame Color

    BLACK

    Decal Color

    CHARCOAL

  • Drivetrain
    Shifter

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

    Crank

    SHIMANO GRX FC-RX820, 48x31T

    Cassette

    SHIMANO ULTEGRA CS-R8101, 11-34T

    Rear Derailleur

    SHIMANO GRX Di2 RD-RX825

    BB

    TOKEN T47 FOR 24mm SPINDLE

    Chain

    KMC NEW X-12

  • Cockpit
    Saddle

    FIZIK TERRA ARGO X7

    Seatpost

    CARBON, DxL: 27.2x400mm

    Handlebar

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

    Handlestem

    BLKTEC R8 INTEGRATED, EXT: 100mm (S, M) / 110mm (L-XL), BB: INTEGRATED, R/D: 0 Degree

    Headset

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

  • Wheel & Tire
    Wheel Set

    NOVATEC G24 DISC (28mm) W/ TUBELESS TAPE INSTALLED

    Wheel Size

    700C

    Tire

    MAXXIS RE-FUSE 700X32C

    Rim

    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

    Hub

    F: NOVATEC D791SB 12x100mm 24H CL / R: NOVATEC D792SB 12x142mm 24H CL FOR CASSETTE SPROCKET

    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

  • Brake
    Brake Lever

    SHIMANO RX825

    Brake Caliper

    SHIMANO GRX RX825 HYDRAULIC DISC

    Rotor

    SHIMANO CL800, 160mm

FAQ

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