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Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
Polygon Tambora G5 - Carbon Gravel Bike
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Description

RACE OR ESCAPE

Whether you plan to race your heart out in the burgeoning gravel race scene or just escape the daily grind, Tambora has you covered. The Tambora transforms between a race-ready gravel grinder and an aggressive roadie. Coming spec’d with Polygon’s super lightweight ACX carbon fibre frame and fork, quality contact points, SRAM components, and a tubeless-ready set-up.

FLIP-CHIP FREEDOM

The Polygon Tambora’s versatile flip-chip design allows you to tailor your ride to the terrain. Go short and sharp for race-day agility or longer and slacker for comfort on epic adventures. With ample mounts for bottles, racks, and mudguards, plus space for 45mm tyres, the Tambora is your versatile gravel companion, ready for any adventure you throw at it.

30 YEARS OF EXPERIENCE

Leveraging 30 years of experience crafting championship-winning road and mountain bikes, Polygon brings its performance-driven engineering and vertically integrated manufacturing to the gravel world. The Tambora is a testament to this legacy, boasting durability, reliability, and a 5-year warranty for peace of mind on any adventure.

INDUSTRY REVIEW

"The Polygon Tambora is an impressively versatile bike!" - 99 Spokes

CARBON FRAME EFFICIENCY

The Tambora G5's lightweight carbon frame provides a stiff and responsive platform for efficient power transfer, while amble clearance for 45c tires provides ample comfort and grip on long offroad adventure

SRAM APEX DRIVETRAIN

The SRAM Apex 1x11 drivetrain offers a wide range of gears and precise shifting, making it easy to find the perfect cadence for any terrain

TRP C711 HYDRAULIC

TRP C711 Hydraulic disc brakes deliver powerful and predictable stopping power, with excellent modulation for precise control in all conditions.

FLIP CHIP GEOMETRY

The Tambora G5 features a flip chip that allows you to adjust the geometry of the bike, choosing between a more stable or agile setup to match your riding style and terrain. Better yet there's even the ability to run a front derailleur for even more adaptability

TUBELESS READY

The Tambora G5's Polygon alloy double-wall wheels, featuring a 26mm internal width, are lightweight and durable, providing a responsive and efficient ride. The tubeless-ready setup, complete with pre-installed tape, pairs perfectly with the Vee Tire Co. Rail Frenzy 700x40C tyres, offering a smooth, supple feel and exceptional grip on both gravel and pavement.

Components

FRAMESET
FRAME
ACX Gravel Frame, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc, Sram UDH
SUSPENSION
FORK
Polygon Full Carbon Rigid fork, Flat Disc Brake, 12x100mm
DRIVETRAIN
REAR DERAILLEUR
Sram Apex 1, 11-Speed
SHIFTER
Sram Apex 1, 11-Speed Shifter
CRANK
Praxis ALBA GR M30, 42T, 170mm
CASSETTE
Sram PG-1130, 11-Speed, 11-42T
CHAIN
KMC X111
BRAKES
FRONT BRAKE
TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor
REAR BRAKE
TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor
WHEELS
RIM
Polygon Alloy Double Wall, 12x100mm, 32H, Novatec D791, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed
TYRE
Vee Tire Co. Rail, 700x40C, 622x50, *Tubeless Ready
CONTACT POINTS
HANDLEBAR
Polygon Alloy flare, 31.8mm Clamp Diameter, 125mm Rise, 16 Degree Flare, 420mm Width (S-M), 440mm Width (L-XL)
SADDLE
Selle Italia Superflow
SEATPOST
Entity Carbon, 27.2 x 300mm (S,M,L) / 27.2 x 350mm (XL)
STEM
Entity Expert, 31.8mm Clamp, 7-Degree, 90mm (S,M) / 100mm (L, XL)

Geometry

  S M L XL
Rider Height (cm) 4'11"–5'4" 5'4"–5'9" 5'9"–6'2" 6'2"–6'5"
Top Tube Length 525 550 580 610
Reach 368 381 397 411
Stack 566 590 620 652
Seat Tube Length 405 449 493 537
Chainstay Length 425 425 425 425
Head Tube Angle 70 71.5 72 72
Seat Tube Angle 74.5 74 73.5 73
BB Height 277 277 277 277
Wheelbase 1017 1023 1045 1068
Head Tube Length 140 160 190 225
Bottom Bracket offset 78 78 78 78
Standover 690 731 773 812

Assembly

Your bike needs minor assembly before riding; use the tools and videos included.

As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.

Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.

Please follow the video playlist below to complete the setup of your new bike correctly.

Step 1

Unboxing Your Tambora G7

Step 2

Dial In Your Bike Fit

Step 3

Dial In Your Tyre Pressures

Step 4

Pre-Ride Check

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