The BSA B1 is a vintage motorcycle that was produced by BSA from 1933 to 1936. It was a very popular model that had many features that made it popular among riders of the time. The B1 had a 500cc engine that produced 19 horsepower and had a top speed of around 70 miles per hour.
The bike had a rigid frame, a girder fork front suspension, and a plunger rear suspension. The B1 also had a four-speed gearbox, which was a new feature at the time. Many riders loved the smooth gear changes that the B1 provided.
The B1’s brakes were also an improvement over older models. The bike had a front and rear drum brake system that provided reliable stopping power. The B1 also had a sleek, stylish design that made it stand out from other motorcycles of the era.
BSA also released a sportier version of the B1, known as the B1 Sports. This model had a higher compression ratio, which increased horsepower to 25. It also had a unique fuel tank design and a set of sporty handlebars.
Overall, the BSA B1 was a high-quality motorcycle that was loved by many riders of the time. Its smooth performance, reliable brakes, and stylish design made it a standout in the era of vintage motorcycles.
Technical specifications:
| Make Model | BSA B1 250 (B33-1, B35-1) |
|---|---|
| Year | 1933 – 36 |
| Engine | Four stroke , single cylinder, side valve |
| Capacity | 249 cc / 15.2 cub in |
| Carburettor | Amal, side float |
| Exhaust | Single, stainless steel |
| Ignition | Magneto |
| Battery | 6V |
| Starting | Slip on kick starter |
| Max Power | 1.83 kW / 2.49 hp |
| Transmission | 3-Speed, gearshift mounted on tank |
| Final Drive | Chain |
| Front Suspension | Girder, spring loaded fork |
| Rear Suspension | None, spring loaded saddle |
| Front Tyre | 2.75 x 19, Avon |
| Rear Tyre | 3.00 x 19, Avon |
| Colour | Green/black |
