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 G – a perfect fusion of gravel and all-road capabilities in one extraordinary ride. This bike empowers 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.​

Features

• Powerful Speed and Unwavering Stability - No need to compromise between speed, stability, and confidence. The wheelbase length ensures stability, while the precise head tube angle instills confidence in your steering and control.
• Conquer Diverse Terrains with Ample Tire Clearance - Accommodating up to 45c tire. Go through any mixed terrain on any race or adventure, Polygon Tambora G will take you on any terrain with powerful speed.
• Free to Choose in a Flip of a Switch - Unlock the power of choice in your cycling experience, where you can switch between speed and agility or stability and control effortlessly. Introducing our groundbreaking technology: Flip Chip! ​
• Enjoy our first carbon gravel bike! - Introducing our first carbon gravel bike – Tambora G. Experience seamless power transfer at high speeds and become one with the ride.
• Wireless shifting - Experience the ultimate cycling pleasure with Polygon Tambora G8X’s new SRAM Rival 1 eTap AXS, ensuring a superior shifting experience.​

Specifications

Frameset ACX GRAVEL

Fork CARBON RIGID

Frame Color MAROON BROWN

Decal Color CHARCOAL

Drivetrain

Shifter SRAM RIVAL ETAP AXS 12-SPEED BRIFTER

Rear Derailleur SRAM RIVAL XPLR ETAP AXS 12-SPEED

Crank SRAM RIVAL 1 WIDE 40T

Cassette SRAM XG-1251 12 SPEED 10-44T XDR

Chain SRAM RIVAL 12-SPEED

BB SRAM DUB T47

Cockpit 

Saddle SELLE ITALIA MODEL X

Handlestem ALLOY STEM, EXT: 90mm (S, M) / 100mm (L, XL), BB: 31,8mm, R/D: 7degree

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

Heaadset TOKEN TK155SP-36 W/ SEALED BEARING

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

Wheel & Tire

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

Tire 700x40C 622x40 TLR

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

Hub F: NOVATEC D791 12x100mm 24H CL / R: NOVATEC D792 12x142mm 24H CL FOR XDR

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

Brake

Brake Lever SRAM RIVAL

Brake Caliper SRAM RIVAL HYDRAULIC DISC

Rotor SRAM PACELINE 160mm CL

Geometry & Size