Ural M 66 vs BSA A 65 Thunderbolt (1975)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Ural M 66stacks up against the BSA A 65 Thunderbolt. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Ural M 66 | BSA A 65 Thunderbolt |
|---|---|---|
| Model year | 1975 | 1972 |
| Price | — | — |
| Engine | 650 cc | 654 cc |
| Horsepower | 32 hp | 46 hp |
| Fuel capacity | 5.6 L | 4.8 L |
| Fuel type | petrol | petrol |
| Transmission | 4-speed | 4-speed |
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Tires | 3.75-19 / 3.75-19 | 3.25-19 / 4.00-18 |
Ural M 66 vs BSA A 65 Thunderbolt — which should you buy?
Picking between the Ural M 66 and the BSA A 65 Thunderbolt usually comes down to the numbers you care about most. On paper, the Ural M 66 brings 32 hp, while the BSA A 65 Thunderbolt counters with 46 hp.
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:

