| Engine | Triumph Bonneville T120 | Triumph Street Twin |
|---|---|---|
| Displacement | 1200 cc | 900 cc |
| Max power | 80 hp (@6 550 RPM) | 55 hp (@5 900 RPM) |
| Max torque | 77 lb ft (@3 100 RPM) | 59 lb ft (@3 230 RPM) |
| Redline | 7 000 RPM | 7 000 RPM |
| Management | Fuel Injection | Fuel Injection |
| Layout | DOHC Inline-2 | DOHC Inline-2 |
| Compression | 10.10:1 | 10.50:1 |
| Oil capacity | 3.60 quart | 3.60 quart |
| Oil type | 10W40, Motul 300V 10W40, Shell Rotella 10W40 | 10W40, Motul 300V 10W40, Shell Rotella 10W40 |
| Spark plug type | NGK LMAR8A-9 | NGK LMAR8A-9 |
| Cooling | Liquid | Liquid |
| Valves | 8 | 8 |
| Bore | 97.6 mm | 84.6 mm |
| Stroke | 80.0 mm | 80.0 mm |
| Battery type | YTX12-BS, 12V, 10Ah | YTX12-BS, 12V, 10Ah |
| Gearbox | Triumph Bonneville T120 | Triumph Street Twin |
|---|---|---|
| Type | Sequential | Sequential |
| Clutch | Wet | Wet |
| Drive | Chain | Chain |
| Chain type | DID 525 VM2, 100 link | DID 520 VM2, 102 link |
| Gears count | 6 | 5 |
| Primary ratio | 1.26 | 1.26 |
| Final drive | 2.18 | 2.41 |
| 1. gear | 3.5 (55 mph) | 3.5 (50 mph) |
| 2. gear | 2.5 (76 mph) | 2.5 (70 mph) |
| 3. gear | 1.85 (104 mph) | 1.85 (94 mph) |
| 4. gear | 1.48 (129 mph) | 1.48 (117 mph) |
| 5. gear | 1.3 (147 mph) | 1.3 (134 mph) |
| 6. gear | 1.17 (164 mph) |
| Chasis | Triumph Bonneville T120 | Triumph Street Twin |
|---|---|---|
| Frame type | Tubular steel cradle | Tubular steel cradle |
| Front susp. | Kayaba 41mm cartidge forks, 4.72 in travel | Kayaba 41mm forks, 4.72 in travel |
| Rear susp. | Kayaba twin shocks, 4.72 in travel | Kayaba twin shocks, 4.72 in travel |