Product code: NL02-503328
| Manufacturer: | Polygon |
| BIKE FRAME | |
| Frame | Aluminium |
| Frame type | Unisex |
| Fork | Carbon |
| Fork type | Rigid |
| Rear suspension | None |
| DRIVE TRAIN | |
| Number of front chainrings | 2 |
| Crankset | PROWHEEL RPZ C701X TT, 48-31T |
| Derailleur Shifter | SHIMANO GRX ST-RX600, 2x11-speed |
| Rear derailleur | SHIMANO GRX RD-RX810 |
| Cassette | SHIMANO CS-HG700, 11-34T |
| Chain | KMC X11 |
| BRAKES | |
| Brakes | SHIMANO GRX ST-RX600 |
| Brake type | Hydraulic disc brakes |
| WHEELS/TIRES | |
| Wheel size | 28 |
| Tyres | MAXXIS PURSUER 700x32C |
| Hub | ALLOY DOUBLE WALL TLR rims, 622 32H; NOVATEC D791SB 12x100 mm and D792SB 12x142 mm hubs, center lock |
| HANDLEBAR | |
| Handlebars | POLYGON EXPERT, W: 420 mm (S, M) / 440 mm (L, XL), B: 31.8 mm |
| Stem | POLYGON EXPERT, E: 90 mm (S, M) / 100 mm (L, XL), B: 31.8 mm |
| BASE INFO | |
| Bicycle type | Gravel |
| Approximate weight, kg | 10.4 kg |
| Maximum load capacity, kg | 120 kg |
POLYGON TAMBORA A4 – a gravel bike with an ALX alloy frame and a full-carbon fork. A Shimano GRX 2x11 drivetrain with a 48-31T crankset and an 11–34T cassette, GRX hydraulic disc brakes, tubeless-ready wheels and Maxxis Pursuer 32 mm tyres. At home on tarmac and gravel alike.
Frame and fork
Drivetrain
Brakes
Wheels and tyres
Cockpit