Bsa
ClassicThunderbolt 650
Compare 1 Bsa Thunderbolt 650 listings from different years and sales sites.
AI
Bsa
Thunderbolt 650
Classic
For sale now1 motorcycles
- Price range
- €5,650 – €5,650
- Avg. mileage
- 9,463 km
- Common year
- 1968 · 1 motorcycles
This text was partly made with AI and may contain errors.
What should you pay for a Thunderbolt 650?
See typical prices, price changes and important differences.
Not enough prices for a useful guide yet
- Typical asking price
- —
- Current prices compared
- 1
This is a guide based on asking prices, not confirmed sale prices.
Price trend
Based on price data from 2 of the past 12 months.
The typical asking price has barely changed since September 2026.
Search results
1 results for Bsa Thunderbolt 650
1results for Bsa Thunderbolt 650
Per page
Comparable models
Also worth considering
Models in the same category and price range to consider alongside the Thunderbolt 650.
Generations and editions
Features and handling differ by generation. Use this overview to find the right version.
2 variants
Years
1971 - 1972
1971–1972 A65T Thunderbolt OIF
GenerationThe late A65T Thunderbolt with oil-in-frame chassis. Treat the oil frame, connections and 1971–1972-specific parts as version-dependent; generic A65 parts are not interchangeable without verification.
654 cc2 cyl.
Years
1966 - 1970
1966–1970 A65T Thunderbolt
GenerationThe classic A65T Thunderbolt: a 654cc air-cooled unit-construction OHV parallel twin with one carburettor and a four-speed gearbox. The Thunderbolt is distinct from the twin-carburettor Lightning.
654 cc2 cyl.
About this model
About the Bsa Thunderbolt 650
The Bsa Thunderbolt 650 is classified in our catalogue as a classic motorcycle. The available catalogue data forms the technical basis of this model profile. Always verify model year, trim and technical values against the individual motorcycle, as they can differ between generations.
- Category
- Classic
Before you buy
What to check before buying
- Check oil pressure, oil return and documented servicing of the pump and timing-side bearing arrangement. On the A65 unit twin, a warped alloy oil pump or inadequate big-end feed can cause serious engine damage; assess this with a specialist, not by sound alone.
- Check the single Amal carburettor for correct float operation, leakage and throttle response. Early Monoblocs are more prone to flooding; BSA used an Amal Concentric from 1968. Do not identify a version from a carburettor swap alone.
- Test the 12V charging system, Zener regulator, coils, wiring and earth connections hot and under load. Loose or corroded connections are a safety and reliability risk on a classic twin.
- Inspect the frame, fixings and engine carefully for oil leaks and corrosion. On 1971–1972 oil-in-frame machines, the oil-carrying frame tube, cap, hoses and connections should be specifically dry and undamaged.
- Verify A65T frame/engine number, year and market version. The Thunderbolt is the single-carb A65; Lightning/Firebird parts and the later BSA T65-badged Triumph TR6 are not automatically correct for an A65T.
Frequently asked questions
Frequently asked questions about the Bsa Thunderbolt 650
What does a used Bsa Thunderbolt 650 cost?
A used Bsa Thunderbolt 650 costs €5,650 on average. Most cost €5,650 to €5,650. This is based on 1 motorcycles for sale now.
How many used Bsa Thunderbolt 650 are for sale?
MotorMonitor now compares 1 used Bsa Thunderbolt 650 motorcycles from Dutch sales sites.
What year and mileage does an average used Bsa Thunderbolt 650 have?
The average used Bsa Thunderbolt 650 is from 1968 and has done about 9,463 km.