Triumph T120 C Bonneville vs Norton Atlas (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Triumph T120 C Bonnevillestacks up against the Norton Atlas. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Triumph T120 C Bonneville | Norton Atlas |
|---|---|---|
| Model year | 1962 | 2021 |
| Price | — | $12,600 |
| Engine | 649 cc | 650 cc |
| Horsepower | 46 hp | 84 hp |
| Torque | — | 64 Nm |
| Weight | 178 kg | 178 kg |
| Seat height | 30 mm | — |
| Fuel capacity | 4.0 L | — |
| Fuel type | petrol | petrol |
| Transmission | 4-speed | — |
| Front brakes | Expanding brake (drum brake) | Double disc. Full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder. |
| Rear brakes | Expanding brake (drum brake) | Single disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder. |
| Tires | 3.25-18 / 4.00-18 | 110/80-R18 / 180/55-R17 |
Triumph T120 C Bonneville vs Norton Atlas — which should you buy?
Picking between the Triumph T120 C Bonneville and the Norton Atlas usually comes down to the numbers you care about most. On paper, the Triumph T120 C Bonneville brings 46 hp in a 178 kg package, while the Norton Atlas counters with 84 hp at 178 kg.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike:

