TIN CHASSIS

[mrequipe]

What are peoples views on tin chassis (not monoque) I have spoken to Ian (sidebloke) about it. It was done in the period by Rudi Kruth (67) and others.One of reasons my Imp (ex Stuart Pearson) (drive man) was turned down was for not having a tubeular beam from bike to sidecar I have an enquiry to build a Rudi Kruth replica with a different engine.
When I started building classic ( replicas) no box swinging arms, no fabricated beams etc. Yet chassis are now useing them ??
Please your comments without being obtrusive

[sidecarracer51]

If I'm not mistaken, Terry Windle made a chassis with folded sheet steel bottom rails and sidecar beam, ala car chassis section, in the 70s.

[mrequipe]

Got to be pre 72 Keith

[sidecarracer51]

OK Mike, I'm not sure of the year they were first made, just that I went to look at one a few years ago, it was under a sheet at the bottom of the guys garden, you can guess the condition.

[mrequipe]

Im not sure personally I think all classics ( replicas) should be tubeular. As the bloke in his shed would have used

[richard]

Hi, The view of the classic club was all chassis's had to be tube not fabricated and that meant the swing arm, at one time that meant round not square tubing, you could have rudi's bike in the crmc but it could not be a replica so if you can get it you could ride it

[pnprod]

I have a Tin Windle or Winstanley, not sure which. Originally built for TZ750. Still in good nick, but some twat fitted a GPZ900. I believed it to be of the era "late 70's,early80's". Would be super to marry it up to aTZ???

[666]

Trevor Ireson and a mate of his built swing arms from square section tube pre 72.the club rule as i understand it is must be of tubular construction and square tube is tube.the Germans and Swiss etc built their chassis using a cross beam which carried the swinging arm and s/car wheel mountings fabricated from sheet steel, also the steering head box was made in the same way pre 72.

[Bob B]

Agree with 666

[petercaughlin]

Sorry to be pedantic but can we call them "swinging arms",its bad enough having to go to "Tech Inspection" instead of "scrutineering", still I suppose they have to check my gas tank and fenders.Looking forward to that TT "movie"..

[richard]

I thought swinging was from the sixties and you had to wear flowers.

[petercaughlin]

Swinging was also what went on on dodgy suburban housing estates,its only a current Super Injunction
preventing me from saying more

[gatekeeper]

a tube is a tube no matter what shape it is---how many early outfits were built with seamed tube---that is effectively a fabricated tube just like an ireson and quite a few others i suppose its down to how you wish to interpret it

[ynys-mon]

Isnt "square tube" Called box section

[richard]

There you go again sixties talk next you will be saying you dig it man