TAMBORA SERIES
Swift Adventures Unlocked in One Bike
- TAMBORA A9X
- TAMBORA G8X
- TAMBORA G7
- See more...
- TAMBORA A5
- TAMBORA G5
- TAMBORA A4
- TAMBORA G4
Features
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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.
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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. This innovation transforms your bike from a gravel conqueror, to an all-road explorerwith the flip of a switch and a swift wheelset change.
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CONQUER DIVERSE TERRAINS WITH AMPLE TIRE CLEARANCE
A wide tire clearance means a more capable you. 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.
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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.
*Available in Tambora G5, G7, and G8X -
WIRELESS SHIFTING
Experience the ultimate cycling pleasure with Polygon Tambora G8X’s new SRAM Rival 1 eTap AXS, ensuring a superior shifting experience.
Choose your series
Build Specs
| Kit |
TAMBORA A9X
|
TAMBORA G8X
|
TAMBORA G7
|
TAMBORA A5
|
TAMBORA G5
|
TAMBORA A4
|
TAMBORA G4
|
|---|---|---|---|---|---|---|---|
| Frame | ACX GRAVEL | ACX GRAVEL | ACX GRAVEL | ACX GRAVEL | ACX GRAVEL | ALX XC TRAIL FRAME | ALX GRAVEL |
| Fork | CARBON RIGID | CARBON RIGID | CARBON RIGID | CARBON RIGID | CARBON RIGID | CARBON RIGID | CARBON RIGID |
| Shifter | SHIMANO GRX Di2 ST-RX825, 2x12-SPEED BRIFTER | SRAM RIVAL ETAP AXS 12-SPEED BRIFTER | SRAM APEX 12-SPEED BRIFTER | SHIMANO GRX ST-RX600, 2x11-SPEED BRIFTER | SRAM APEX 1 11-SPEED BRIFTER | SHIMANO GRX ST-RX600, 2x11-SPEED BRIFTER | MICROSHIFT ADVENT X SB-M100, 1x10-SPEED BRIFTER |
| Crank Set | SHIMANO GRX FC-RX820, 48x31T | SRAM RIVAL 1 WIDE 40T | SRAM APEX 1 WIDE 40T | PRAXIS ALBA GR M30, 48-32T | PRAXIS ALBA GR M30 40T | PROWHEEL RPZ C701X TT, 48-31T | ALLOY 40T |
| Cassette | SHIMANO ULTEGRA CS-R8101, 11-34T | SRAM XG-1251 12 SPEED 10-44T XDR | SRAM XPLR PG-1231 12 SPEED 11-44T | SHIMANO CS-HG700, 11-34T | SRAM PG-1130 11-SPEED 11-42T | SHIMANO CS-HG700, 11-34T | MICROSHIFT ADVENT X CS-H104 10 SPEED 11-48T |
| Rear Derailleur | SHIMANO GRX Di2 RD-RX825 | SRAM RIVAL XPLR ETAP AXS 12-SPEED | SRAM APEX XPLR 12-SPEED | SHIMANO GRX RD-RX810 | SRAM APEX 1 11-SPEED | SHIMANO GRX RD-RX810 | MICROSHIFT ADVENT X M6205GM 10-SPEED |
| Wheel Set | NOVATEC G24 DISC (28mm) W/ TUBELESS TAPE INSTALLED | NOVATEC G24 DISC (28mm) W/ TUBELESS TAPE INSTALLED | NOVATEC G24 DISC (28mm) W/ TUBELESS TAPE INSTALLED | ALLOY DOUBLE WALL 32H | ALLOY DOUBLE WALL 32H | ALLOY DOUBLE WALL 32H | ALLOY DOUBLE WALL 32H |
| Tire | MAXXIS RE-FUSE 700X32C | 700x40C 622x40 TLR | 700x40C 622x40 TLR | MAXXIS RE-FUSE 700X32C | VEE RAIL 700x40C 622x40 TLR | MAXXIS PURSUER 700X32C | VEE RAIL 700x40C 622x40 TLR |
| Brake Lever | SHIMANO RX825 | SRAM RIVAL | SRAM APEX | SHIMANO ST-RX600 | SRAM APEX 1 | SHIMANO ST-RX600 | MICROSHIFT ADVENT X SB-M100 |
| Brake Caliper | SHIMANO GRX RX825 HYDRAULIC DISC | SRAM RIVAL HYDRAULIC DISC | SRAM APEX HYDRAULIC DISC | SHIMANO GRX HYDRAULIC DISC | TRP HD-C711 HY-ROAD | SHIMANO GRX HYDRAULIC DISC | TEKTRO MD-C550 MECHANICAL |
| Rotor | SHIMANO CL800, 160mm | SRAM PACELINE 160mm CL | SRAM PACELINE 160mm CL | SHIMANO RT-CL700, 160mm | TEKTRO TR-160mm CL | SHIMANO RT-CL700, 160mm | TEKTRO 160mm 6B |
FAQ
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Where are the mounts to hold gear? If I wanted to buy a bolted bag, what are the specifications? For full frame and half frame
There are 14 mounts on the Polygon Tambora series; 3 on the top tube, 7 on the down tube, 2 on the seat tube, and a pair of rear carrier mounts. We're using universal-size mounts, so there are no special specifications for the compatible bolted bag. You can freely choose the bolted bag that fits you best.
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What is the biggest chainring I can fit?
The maximum chainring of Tambora series is 42T
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What are the biggest rotors I can fit?
The biggest rotors for the Tambora series are 160 mm
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Can you fit mudguards, pannier racks front and back?
Of course! Tambora Series can be equipped with a rear pannier or rear mudguard.
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How do you change the flip chip?
The Tambora has flip chips located at the rear dropouts and the base of the fork, allowing you to easily switch between gravel and all-road configurations. Watch the full video here.
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Can I fit a dropper post?
Yes! But it should be a gravel bike dropper post which commonly designed from 50mm to 125mm of travel.
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Is it possible to upgrade a road bike to a gravel bike?
This should not be possible because of the small tire clearance and its fixed aggressive geometry.
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What is the best configuration for bikepacking gear?
The best configuration of bikepacking typically is a lightweight and compact gear that can bring all of your needs. But it can vary depending on the individual's preferences, the specific trip's requirements, and the terrain being covered.
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How does the geometry of Tambora bikes differ from gravel bikes and other road bikes?
The gravel bike has a higher stack, slacker head angle, and longer wheelbase for stability.
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What are the gearing differences on gravel vs road bikes?
A gravel bike is using a bigger sprocket than a road bike.