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Author Topic: first vertical bsa twin?  (Read 165 times)

Offline rocker21

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first vertical bsa twin?
« on: 05.10. 2022 12:33 »
https://cybermotorcycle.com/gallery/bsa-1938/BSA-1938-OHC-Twin-Prototype-SCA.htm
anyone know anything about this? was this the beginning of the A7/A10
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Online Swarfcut

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Re: first vertical bsa twin?
« Reply #1 on: 05.10. 2022 14:36 »
 This has featured before on the Forum. It is also described  in Roy Bacons BSA Twins and Triples. Pictured on Page 12 of my edition. 1938/39 Prototype. SOHC, cam driven by bevel gears, driveshaft in external vertical tunnel. Looks like Kawasaki came across this concept for their later retro look.

 Swarfy.
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Online Topdad

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Re: first vertical bsa twin?
« Reply #2 on: 05.10. 2022 15:12 »
What that may have hatched ?
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Online Greybeard

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Re: first vertical bsa twin?
« Reply #3 on: 05.10. 2022 17:39 »
It's a beautiful engine isn't it.
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