MSRP | $1,699 | $2,299 | $2,799 |
|---|---|---|---|
Where to Buy | $1,699 6% off At Bikes Online | $2,299 8% off At Bikes Online | $2,799 7% off At Bikes Online |
Category | Gravel | Gravel | Gravel |
Weight | 21.6 lbs | 3.1 lbs (frame) | |
| Carbon | Carbon | Carbon | |
Fork | Carbon | Carbon | Carbon |
Wheels | Aluminum | Aluminum | Aluminum |
Wheel Size | 700c | 700c | 700c |
Brakes | Hydraulic Disc | Hydraulic Disc | Hydraulic Disc |
Groupset | Apex, Praxis | Apex, Praxis | Rival XPLR AXS, Rival AXS |
Drivetrain | 1 × 11 | 1 × 11 | 1 × 12 Electronic |
Brand Site | |||
Summary | The Polygon Tambora G5, Polygon Tambora G7, and Polygon Tambora G8X are all carbon frame gravel bikes with hydraulic disc brakes. The Tambora G8X has better components and a 1 × 12 drivetrain providing a wider range of gears. | ||
Based on frame geometry and build specs.
Frame | ACX Gravel Frame, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc, SRAM UDH BB Standard: BB86/BB92, Press Fit Hanger Standard: UDH | ACX Gravel Frame, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc, SRAM UDH BB Standard: BB86/BB92, Press Fit Hanger Standard: UDH | ACX Gravel Frame, Internal Cable Routing, BB THREADED T47 86.5mm, 12x142mm Thru-Axle, Flat Mount Disc, SRAM UDH BB Standard: BB86/BB92, Press Fit Hanger Standard: UDH |
|---|---|---|---|
Fork | Polygon Full Carbon Rigid fork, Flat Disc Brake, 12x100mm | Polygon Full Carbon Rigid fork, Flat Disc Brake, 12x100mm | Polygon Full Carbon Rigid fork, Flat Disc Brake, 12x100mm |
Bottom Bracket | BB86/BB92, press-fit | Threaded BSA 68mm | SRAM DUB T47 |
Headset | ZS 56/28.6 | ZS 56/40 | ZS 56/28.6 | ZS 56/40 | |
Stem | Entity Expert, 31.8mm Clamp, 7-Degree, 90mm (S,M) / 100mm (L, XL) | Entity Expert, 31.8mm Clamp, 7-Degree, 90mm (S,M) / 100mm (L, XL) | 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) | Polygon Alloy flare, 31.8mm Clamp Diameter, 125mm Rise, 16 Degree Flare, 420mm Width (S-M), 440mm Width (L-XL) | Polygon Alloy flare, 31.8mm Clamp Diameter, 125mm Rise, 16 Degree Flare, 420mm Width (S-M), 440mm Width (L-XL) |
Saddle | Selle Italia Superflow | Selle Italia Superflow | Selle Italia Superflow |
Seatpost | Entity Carbon, 27.2 x 300mm (S,M,L) / 27.2 x 350mm (XL) | Entity Carbon, 27.2 x 300mm (S,M,L) / 27.2 x 350mm (XL) | Entity Carbon, 27.2 x 300mm (S,M,L) / 27.2 x 350mm (XL) |
Rear Derailleur | SRAM Apex 1, 11-Speed | SRAM Apex 1, 11-Speed | SRAM Rival XPLR ETAP AXS, 12-Speed |
|---|---|---|---|
Crank | Praxis ALBA GR M30, 42T, 170mm | Praxis ALBA GR M30, 42T, 170mm | SRAM RIVAL 1 WIDE 40T, 170mm |
Shifters | SRAM Apex 1, 11-Speed Shifter | SRAM Apex 1, 11-Speed Shifter | SRAM Rival ETAP AXS, 12-Speed Shifter |
Cassette | SRAM PG-1130, 11-Speed, 11-42T | SRAM PG-1130, 11-Speed, 11-42T | SRAM XG-1251, 10-44T, 12-Speed |
Chain | KMC X111 | KMC X111 | SRAM Rival, 12-Speed |
Brakes | Front: TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor, Rear: TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor | Front: TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor, Rear: TRP HD-C711 HY-ROAD, Hydraulic Disc Brake, 160mm Rotor | Front: SRAM Rival, Hydraulic Disc Brake, 160mm Rotor, Rear: SRAM Rival, Hydraulic Disc Brake, 160mm Rotor |
Rims | Front: Polygon Alloy Double Wall, 26mm Inner, 12x100mm, 32H, Novatec D791, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed, Rear: Polygon Alloy Double Wall, 26mm Inner, 12x142mm, 32H, Novatec D792, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed | Front: Novatec G24 Disc, 12x100mm, 32H, 24mm Internal Width, Novatec D791, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed, Rear: Novatec G24 Disc, 12X142mm, 32H, 24mm Internal Width, Novatec D792, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed | Front: Novatec G24 Disc, 24mm Internal width, 12x100mm, 24H, Novatec D791, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed, Rear: Novatec G24 Disc, 24mm Internal width, 12X142mm, 24H, Novatec D792, 6 Bolt Hub, Stainless spokes, Brass Nipple, Tubeless Tape Installed |
|---|---|---|---|
Tires | Front: Vee Tire Co. Rail, 700x40C, Rear: Vee Tire Co. Rail, 700x40C | Front: Vee Tire Co. Rail, 700x40C, Tubeless Ready, Rear: Vee Tire Co. Rail, 700x40C, Tubeless Ready | Front: Vee Tire Rail Frenzy, 700x40C, Rear: Vee Tire Rail Frenzy, 700x40C |