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Message started by jcstokes on 09/21/16 at 23:12:15

Title: A short selection of "Thumpers"???
Post by jcstokes on 09/21/16 at 23:12:15

https://www.youtube.com/watch?v=-4QUhygfPKI

Title: Re: A short selection of "Thumpers"???
Post by Ruttly on 09/22/16 at 05:54:27

Love that Matchless

Title: Re: A short selection of "Thumpers"???
Post by MMRanch on 09/22/16 at 18:42:42

So , The 1932 -74/cubic-inch Harley that folks fell in love with , was 28HP and would do 90 mph. Sound familiar ?

Well , it was a twin --- but 28 - 35 HP , is a fun range .

;)

Title: Re: A short selection of "Thumpers"???
Post by Kris01 on 09/22/16 at 19:43:34

That rotating gizmo on the 1st bike looks really safe! :o

Title: Re: A short selection of "Thumpers"???
Post by HovisPresley on 09/22/16 at 20:06:41

0C352E347776470 wrote:

That rotating gizmo on the 1st bike looks really safe! :o

.............................................

The inner part of his Tweed 'riding trousers' was made of a Kevlar/Gortex/Carbon-fibre material, a material only discovered by riders of multi-cylinder machines many moons later.... :D

Great vid :)

Title: Re: A short selection of "Thumpers"???
Post by Dave on 09/23/16 at 03:01:12

The following video.....was a fellow attempting 150 mph in 1930. He had a wool sweater on - and they used electrical tape to try and make the sweater more streamlined!

https://www.youtube.com/watch?v=iVNozc6qh3M

[media]http://www.youtube.com/watch?v=iVNozc6qh3M[/media]

Title: Re: A short selection of "Thumpers"???
Post by Kris01 on 09/23/16 at 13:35:54

There was a lot of streamlining done in the 30's with boat tail cars, etc. We owe a lot to those early innovators.

Title: Re: A short selection of "Thumpers"???
Post by justin_o_guy2 on 09/23/16 at 19:27:33

Four cylinder
FIVE horsepower..

Title: Re: A short selection of "Thumpers"???
Post by Kris01 on 09/25/16 at 19:32:06

Remember, compression ratios were really low back then because of the crappy gas.