Author Topic: Not a twin but very special  (Read 169 times)

Online Klaus

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Not a twin but very special
« on: 25.01. 2019 18:56 »
Mid last year I could catch a special Project for a realy low budget as a basket case about 30 miles from home.
Checking all the parts, the spares as well at  the scren and the finger was on the bottom.
Two gearboxes, one a competition second head with rockerbox, and by the way all reconditiond- missing parts was the frontfork, headlamp, fender. Thiswas in case the bike had an bad crash in 1960- The papers tolt it was out of order one month after my birth.A realy long sleep. I gues the last owner planed a restoration , so the all parts were covered with dust but oiled befor stored. A good clean showed new valves,guids, piston first oversice, new bigend and so on, realy surprised.
 The descition to build up a bike as racer was the option to get a new rebuild barrel with piston.
Base was a wracked M20.....realy a bad condition *eek*

Never the less, winter comes with no boring time and a lot of work.
First the build up of the engine was an easy way and done in two weeks,  firing up with a vew kicks in a special stand, dear what a sound *loveit*

The original bike come to live early 1939 , despatched to BSA Dealer Zorrel Warschau.The trace in II world war is unknow, but it is a marvel the bike survived and comes to light in 1949 near Frankfurt. Three owners till 1961 all living in Frankfurt.

It`s one of the 37 survivers with matching numbers. The reerrection of the bike will close up maybe in 2 month.

And know some pictures from the racer. This is the original engine, I stiil only wait for the barrel to complete the racer.

cheers Klaus


If you think, everything is under control, you are not fast enought.

Offline Bsareg

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Re: Not a twin but very special
« Reply #1 on: 25.01. 2019 20:20 »
Very nice. Looking at the way the alloy barrel and head are held down, it could be a M24 engine.
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Online Klaus

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Re: Not a twin but very special
« Reply #2 on: 25.01. 2019 20:44 »
Yes, its a M24, I am surprised about the wight. Engine with magneto and Dynamo only scratched 40 kg. A B33 it s about 60 kg.
The BSA Systhems with interchangeabel Parts is great. All later cams can fit for a Power upgrate, the prewar Barrel can put on the all OHV Crankcases.
For M24 all parts where special selected and every engine are dyno tested.

cheers Klaus


If you think, everything is under control, you are not fast enought.

Offline cyclobutch

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Re: Not a twin but very special
« Reply #3 on: 25.01. 2019 20:54 »
Man that looks good.
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Online Greybeard

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Re: Not a twin but very special
« Reply #4 on: 25.01. 2019 21:26 »
I really want to hear that baby running!

Online WozzA

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Re: Not a twin but very special
« Reply #5 on: 25.01. 2019 22:08 »
 *dribble*  Congratulations Klaus, she's a thing of beauty...  *loveit*
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