Ariel 4G Square Four Mark II vs Brough Superior Lawrence Dagger (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Ariel 4G Square Four Mark IIstacks up against the Brough Superior Lawrence Dagger. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Ariel 4G Square Four Mark II | Brough Superior Lawrence Dagger |
|---|---|---|
| Model year | 1959 | 2023 |
| Price | — | — |
| Engine | 995 cc | 997 cc |
| Horsepower | 45 hp | 102 hp |
| Torque | — | 87 Nm |
| Weight | — | 200 kg |
| Seat height | — | 32 mm |
| Fuel capacity | 5.0 L | 4.5 L |
| Fuel type | petrol | petrol |
| Transmission | 4-speed | 6-speed |
| Front brakes | Expanding brake (drum brake) | Double disc. Beringer Stainless Steel discs with 2 x two-piston Beringer radial calipers |
| Rear brakes | Expanding brake (drum brake) | Single disc. Beringer Stainless Steel disc with 1 x two-piston Beringer radial caliper |
| Tires | 3.25-19 / 4.00-18 | 120/70-17 / 200/55-17 |
Ariel 4G Square Four Mark II vs Brough Superior Lawrence Dagger — which should you buy?
Picking between the Ariel 4G Square Four Mark II and the Brough Superior Lawrence Dagger usually comes down to the numbers you care about most. On paper, the Ariel 4G Square Four Mark II brings 45 hp, while the Brough Superior Lawrence Dagger counters with 102 hp at 200 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: