BSA 1970s

Today in Motorcycle History

BSA 1971 250cc Singles


TWO 250s THAT PROVED THEMSELVES BEFORE YOU RACE THEM.

Each one of these bikes has features developed out of John Banks' own racing experience. Not only the big things you can see, like the power to go and the power to stop, the lightweight forks, and the new lightweight 20" front wheels, but features you can't see, like the competition-proved 4-speed gearbox, the high torque that makes extra gears unnecessary. And there are many, many more advantages. (Check the specs.)

BSA GOLD STAR 250-SS.

(B-25SS)


Engine Type
No of Cylinders
Max. Horsepower
Max. Torque
Bore/Stroke
Comp. Ratio
Transmission
Carburetor
Tire Size Front
Tire Size Rear
Front Brake Dia./Type
Rear Brake Dia./Type
Wheel Base
Ground Clearance
Dry Weight
Fuel Tank Capacity
Oil Capacity

OHV 4-stroke
1
22.5 bhp @ 8250 rpm
15.8 it. lb. @ 7000 rpm
67 x 70 mm
10:1
4-Speed gearbox
Amal 28mm concentric
Dunlop 3-25 x 18"K70
Dunlop 3-50 x 18" K70
6" SLS
7" SLS
54"
7"
290 lbs.
2¼ gals.
4¾ pts.

BSA VICTOR 250-TRAIL

(B-25T)


Engine Type
No. of Cylinders
Max. Horsepower
Max. Torque
Bore/Stroke
Comp. Ratio
Transmission.
Carburetor
Tire Size Front
Tire Size Rear
Front Brake Dia./Type
Rear Brake Dia./Type
Wheel Base
Ground Clearance
Dry Weight
Fuel Tank Capacity
Oil Capacity

OHV 4-stroke
1
22.5 bhp @ 8250 rpm
15.8 ft. lb. @ 7000 rpm
67 x 70 mm
10:1
4-Speed gearbox
Amal 28mm concentric
Dunlop 3.00x20" Trials
Dunlop 4.00 x 18" Trials
6" SLS
7" SLS
54"

287 lbs.
2½ gals, (aluminum tank)
4¾ pts.