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BSA, Triumph and Ariel motorbikes & trikes

I've had my M21 a few years now, once upon a time it had a yellow tank and sidecar. I'm not going to say who, as recently took em nearly 10 hours to get my classic car 10 miles home and they also diagnosed the issue wrong.:mask:

1957 BSA M21 600cc SV.JPG
 
oldMohawk said:
I bought my 1st Scooter in 1959 from Chambers in Sutton.
It was a BSA Sunbeam 250cc 4 stroke like the one shown below, only mine was light blue.

Had some adventures with it - 75mph on the Chester Rd north.
A cow chewed most of it's seat off while I was flying a model aeroplane in Sutton Park, and the scooter was shortened by about 12 inches when I pulled up behind a car on Sutton Parade, and a car ran into the back of me.
I notice my licence says I'm still qualified to ride a motorbike ! Some hopes...:biggrin:

BSA_Sunbeam_Scooter.jpg
Click to expand...
Haven't noticed mention of the 1950's BSA Sunbeam, perhaps because it's not a proper motor bike.
 
1950 Sunbeam S7 Deluxe

BSA acquired Sunbeam in 1943 and unveiled a new model in 1946, designed to be the "group flagship." The Sunbeam featured a short-stroke, overhead cam, inline twin-cylinder engine with shaft final drive via a four-speed gearbox. It had a duplex frame, plunger rear suspension, telescopic forks, and 16-inch balloon tires. However, due to issues, the model's release was delayed until 1947.The S7 Deluxe is powered by a 487cc (500cc) overhead-camshaft (OHC) parallel-twin, four-stroke engine that is mounted longitudinally, like a car's engine. The unit featured a wet sump lubrication system and coil ignition.Drivetrain: A four-speed gearbox and a dry clutch transferred power to a shaft drive, a very advanced feature for British motorcycles at the time. The S7 used a worm gear final drive.
1763227085048.jpeg
s8 sunbeam
1763227240044.jpeg
 
mw0njm. said:
1950 Sunbeam S7 Deluxe

BSA acquired Sunbeam in 1943 and unveiled a new model in 1946, designed to be the "group flagship." The Sunbeam featured a short-stroke, overhead cam, inline twin-cylinder engine with shaft final drive via a four-speed gearbox. It had a duplex frame, plunger rear suspension, telescopic forks, and 16-inch balloon tires. However, due to issues, the model's release was delayed until 1947.The S7 Deluxe is powered by a 487cc (500cc) overhead-camshaft (OHC) parallel-twin, four-stroke engine that is mounted longitudinally, like a car's engine. The unit featured a wet sump lubrication system and coil ignition.Drivetrain: A four-speed gearbox and a dry clutch transferred power to a shaft drive, a very advanced feature for British motorcycles at the time. The S7 used a worm gear final drive.
View attachment 213853
s8 sunbeam
View attachment 213857
Click to expand...
The green bike reminds me of a Garley police cruiser.
 
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