Triumph Rocket 3 TFC vs Viper Diablo (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Triumph Rocket 3 TFCstacks up against the Viper Diablo. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Triumph Rocket 3 TFC | Viper Diablo |
|---|---|---|
| Model year | 2020 | 2009 |
| Price | — | — |
| Engine | 2458 cc | 2491 cc |
| Horsepower | 182 hp | — |
| Torque | 225 Nm | — |
| Weight | 290 kg | 272 kg |
| Seat height | 30 mm | 24 mm |
| Fuel capacity | 4.8 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 6-speed |
| Front brakes | Double disc. Brembo M4.30 Stylema 4-piston radial monobloc calipers. ABS. | Single disc. 4-piston caliper |
| Rear brakes | Single disc. Brembo 2-piston fixed calipers. ABS. | Single disc. 4-piston caliper |
| Tires | 150/80-R17 / 240/50-R16 | 130/70-18 / 260/40-18 |
Triumph Rocket 3 TFC vs Viper Diablo — which should you buy?
Picking between the Triumph Rocket 3 TFC and the Viper Diablo usually comes down to the numbers you care about most. On paper, the Triumph Rocket 3 TFC brings 182 hp in a 290 kg package, while the Viper Diablo counters with its own power figure at 272 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:

