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Bsa
B 25
Classic
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What should you pay for a B 25?
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Generations and editions
Features and handling differ by generation. Use this overview to find the right version.
3 variants
Years
1971 - 1971
1971 B25T Victor Trail 250
EditionThe 1971 B25T Victor Trail 250 off-road version, sharing many Gold Star parts but using, among other changes, a 20-inch front wheel, off-road tyres and a high-mounted front mudguard. Match only with an explicit B25T/Victor Trail designation.
247 cc1 cyl.A2 suitable
Years
1968 - 1970
1968–1970 B25 Starfire
GenerationThe regular B25 Starfire. Front brake and detail specification changed by year; BSA used the B25S designation from September 1968. Do not specify generic B25 adverts further without number or model evidence.
247 cc1 cyl.A2 suitable
Years
1967 - 1967
1967 B25 Starfire / C25 Barracuda
GenerationThe first 247cc unit-construction OHV single. It began as the C25 Barracuda in the UK and the B25 Starfire in the US; a C25 prefix on a US Starfire is therefore not automatically a mismatch.
247 cc1 cyl.A2 suitable
About this model
About the Bsa B 25
The Bsa B 25 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
- Verify the exact version from frame and engine numbers. Early C25 Barracuda and B25 Starfire machines can carry different prefixes; B25S is Starfire (from September 1968) and B25SS belongs to the 1971 Gold Star 250.
- Check oil level, pump/return, leaks and the condition of the oil serving the engine and primary drive. Listen for irregular mechanical noise cold and hot, and ask for documented oil and filter servicing.
- Check carburettor, inlet rubber, air filter and ignition for stable cold starting and clean throttle response. This 10:1 OHV single should not be assessed through arbitrary jetting, exhaust or timing modifications.
- Inspect the wet multi-plate clutch, four-speed gearbox and chain drive on a test ride. On 1971 OIF models, inspect the oil-carrying frame and every connection specifically for leaks, damage and contamination.
- Inspect drum brakes, spokes, swingarm, forks and frame carefully. B25SS and B25T versions have different wheels, front brake and off-road equipment; match parts only to the correct version.