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2024 Polygon

Tambora G8X 700c

A carbon frame gravel bike with upper mid-range components and sram rival hydraulic disc brakes.
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Manufacturer Price

$2,999
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Carbon
Drivetrain1 × 12 Electronic
GroupsetRival XPLR AXS, Rival AXS
BrakesSRAM Rival Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Tambora G8X 700c
Other Gravel bikes
Gearing

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)

36 mph

Tambora G8X 700c

36 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Tambora model range

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Sizing
SM

4'11" – 5'5"

MD

5'3" – 5'10"

LG

5'8" – 6'3"

XL

6'1" – 6'6"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
99 Spokes
Polygon Tambora Review || Two Bikes in One!

Mar 2024

The Polygon Tambora G7 packs a ton of features (adjustable geometry anyone!) into a low its small price tag! But high value on ...

Watch Review

Geometry
Specs
Build
Frame

ACX Gravel Frame, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc, SRAM UDH

BB StandardBB86/BB92, Press Fit

Hanger StandardUDH

Fork

Polygon Full Carbon Rigid fork, Flat Disc Brake, 12x100mm

Bottom Bracket

BB86/BB92, press-fit

Stem

Entity Expert, 31.8mm Clamp, 7-Degree, 90mm (S,M) / 100mm (L, XL)

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)

TypeRigid

Groupset
Rear Derailleur

SRAM Rival XPLR ETAP AXS, 12-Speed

Crank

SRAM Rival 1 Wide 42T, 170mm

Shifters

SRAM Rival ETAP AXS, 12-Speed Shifter

Cassette

SRAM XG-1251, 10-44T, 12-Speed

Chain

SRAM Rival, 12-Speed

Brakes

Front: SRAM Rival, Hydraulic Disc Brake, 160mm Rotor, Rear: SRAM Rival, Hydraulic Disc Brake, 160mm Rotor

TypeSRAM Rival Hydraulic Disc

Wheels
Rims

Novatec G24 Disc Carbon 28mm Internal Width, Tubeless Tape Installed

Front Hub

Novatec G24 Disc, 12x100mm, 24H, Novatec D791, 6 Bolt Hub

Rear Hub

Novatec G24 Disc, 12X142mm, 24H, Novatec D792, 6 Bolt Hub

Tires

Vee Tire Co. Rail, 700x40C, 622x40, *Tubeless Ready

Rider Notes
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First added April 19

Last updated June 14

Not listed for 358 days