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henri

Oct 29, 2011 - 7:44PM

Unknow Sidecar Frame, BS?

Came up on this one today. I think it may be an early BSA frame

email (option): unpob@yahoo.com

Rob Miller

Oct 29, 2011 - 8:29PM

Re: Unknow Sidecar Frame, BS?

Hi Henri
Looks more like Norton.
Rob.

email (option): robmiller11@yahoo.co.uk

henri

Oct 29, 2011 - 8:43PM

Re: Unknow Sidecar Frame, BS?

Thanks Rob, the two back springs look like it alright. But not the B4 I think.

email (option): unpob@yahoo.com

Rob Miller

Oct 29, 2011 - 8:55PM

Re: Unknow Sidecar Frame, BS?

Looks like Big4 or the non driven version, either way it seems to be missing the wheel and mudguard mounting outer rail?

email (option): robmiller11@yahoo.co.uk

henri

Oct 29, 2011 - 9:32PM

Re: Unknow Sidecar Frame, BS?

I think you are correct Rob, a part B4 sidecare frame.

email (option): unpob@yahoo.com

Ron Pier

Oct 29, 2011 - 10:48PM

Re: Unknow Sidecar Frame, BS?

Henri. Here is a Norton chassis without wheel drive. The Norton chassis all seem to have the mudguard hoops. Ron

email (option): ronpier@talk21.com

henri

Oct 29, 2011 - 10:52PM

Re: Unknow Sidecar Frame, BS?

Thanks Ron, great picture and I hope you did not remove the boat just to take it! Tough to find these details on the web. I am guessing it would have the fender brace like the B4, and I have the details for that.

email (option): unpob@yahoo.com

Rob Miller

Oct 29, 2011 - 11:13PM

Re: Unknow Sidecar Frame, BS?

Henri's has the mounts on the rear frame tube for the dampers, so I guess it is big 4.

Any chance of a better picture of the wheel fitting?

Rob.

email (option): robmiller11@yahoo.co.uk

henri

Oct 30, 2011 - 2:09AM

Re: Unknow Sidecar Frame, BS?

Hi Rob, does this help

email (option): unpob@yahoo.com

Ron Pier

Oct 30, 2011 - 9:09AM

Re: Unknow Sidecar Frame, BS?

The Norton chassis usually have a number stamped on the lug that the front mounting tube is bolted too. Ron

email (option): ronpier@talk21.com

Rob Miller

Oct 30, 2011 - 9:24AM

Re: Unknow Sidecar Frame, BS?

henri

Hi Rob, does this help

The sidecar wheel bearing holder looks big enough for the Big4.

Very nice find Henri

email (option): robmiller11@yahoo.co.uk

Ron Pier

Oct 30, 2011 - 9:44AM

Re: Unknow Sidecar Frame, BS?

Yes I thought that bearing looks like B4. If it is, you should see the remains of the splined shaft for the prop shaft. Or can you see any evidence of the mudguard hoops? A shot from above of the whole chassis laid flat would be good. Ron

email (option): ronpier@talk21.com

henri

Oct 30, 2011 - 11:26PM

Re: Unknow Sidecar Frame, BS?

Couple more

email (option): unpob@yahoo.com

henri

Oct 30, 2011 - 11:57PM

Re: Unknow Sidecar Frame, BS?

Fender only for show, not a Norton fender.

email (option): unpob@yahoo.com