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

SpecUral M 66BSA A 65 Thunderbolt
Model year19751972
Price
Engine650 cc654 cc
Horsepower32 hp46 hp
Fuel capacity5.6 L4.8 L
Fuel typepetrolpetrol
Transmission4-speed4-speed
Front brakesExpanding brakeExpanding brake
Rear brakesExpanding brakeExpanding brake
Tires3.75-19 / 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: