
TIN CHASSIS
- anp
- Scything Through The Field
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- Full Name: paul lightfoot
- Location: anne & paul near Oulton Park
Re: TIN CHASSIS
call it pipe to avoid confusion 

- sidecar bloke
- Setting the Fastest Lap
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- Full Name: Ian Johnson
- Location: Farnborough, Hants
Re: TIN CHASSIS
At this point I would like to hide behind the CRMC rule on frames which states "frames are to be of a tubular construction" as pointed out by my predecessor a few posts earlier. Personally I love to see different ideas out there - to have been around in the Classic '60s era when people had the freedom to try out all sorts of wacky ideas must have been fantastic. But sadly that was then and this is now and if we allow tin chassis in the next step would be a monocoque chassis made of aluminium and we end up with F1 - which is what happened at the time.
So, although it irks me somewhat, because I personally love to see different stuff, I feel as Eligibility Officer we must stick to our good old Reynolds or T45.
If somebody knows where Herr Kruth's original outfit is then get it back on the track.
Ian
P.S. Just a thought - if somebody did present Mr Kruth's outfit, refurbished, sparkling clean, how would I know whether it was the original or a replica? Ooops!!!!
So, although it irks me somewhat, because I personally love to see different stuff, I feel as Eligibility Officer we must stick to our good old Reynolds or T45.
If somebody knows where Herr Kruth's original outfit is then get it back on the track.
Ian
P.S. Just a thought - if somebody did present Mr Kruth's outfit, refurbished, sparkling clean, how would I know whether it was the original or a replica? Ooops!!!!
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- Lapping the Tail Enders
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Re: TIN CHASSIS
Out of curriousity,what advantage,(if any) has a box/fabricated beam,compared to a tubular cross beam?
- Bob B
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Re: TIN CHASSIS
Tony asks what advantage with a "tin chassis".
The easiest way for me to explain is this: 1967, Mallory Park, practice, Gerrards - standard ware was lore or less Brit twin, 16" F&R or possibly 19" rear, little black outfit slides round our outside (the hard way IIRC!) with passenger crouching by back wheel, hand draped over the rear wheel arch - disappeared into the distance. That was Rudi's mini wheeled black Bomber outfit, seemed to outhandle just about everything.
Me? I don't need any more proof
The easiest way for me to explain is this: 1967, Mallory Park, practice, Gerrards - standard ware was lore or less Brit twin, 16" F&R or possibly 19" rear, little black outfit slides round our outside (the hard way IIRC!) with passenger crouching by back wheel, hand draped over the rear wheel arch - disappeared into the distance. That was Rudi's mini wheeled black Bomber outfit, seemed to outhandle just about everything.
Me? I don't need any more proof

It is true about the sidecar family - you can stop racing but you can never, ever leave!
- mrequipe
- Lapping the Tail Enders
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- Location: Limoges, France
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Re: TIN CHASSIS
" Frames to be of tubular contruction" .So does that rule out fabricated sections from bike to sidecar



http://www.mrequipe.net
M R Equipe the choice of Classic Sidecar Champions
19 Championship Wins in European / British Classics and F2 class.
Classics are the future
M R Equipe the choice of Classic Sidecar Champions
19 Championship Wins in European / British Classics and F2 class.
Classics are the future
- sidecar bloke
- Setting the Fastest Lap
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- Full Name: Ian Johnson
- Location: Farnborough, Hants
Re: TIN CHASSIS
ERRRRRRRRRRRRR............Damn it..I'll be back....
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- Lapping the Tail Enders
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Re: TIN CHASSIS
Hi Mike,it would seem everybody seems to think your asking about fabricated frames,when I thought you were asking about the beam that runs across the sidecar which holds the swingingarm mounts and the sidecar axle.I.e only one part of a frame,not the whole chassis.Am I correct?
- 666
- Setting the Fastest Lap
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Re: TIN CHASSIS
In reply to ynys-mon,I made 2 swing arms, one for a friend and one for our bike from 2"x1"box.1 bike gained eligibility, the other one failed they were both made from the same length of tube, and we had to make another, we made this one from oval tube and this was deemed ok,the same eligibility man made the distinction between tubes saying that box section was not tube!!!!,please don't ask me as i had no explanation given to me.
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Re: TIN CHASSIS
no its called square rhs tubeynys-mon wrote:Isnt "square tube" Called box section![]()
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just one more lap and i'll have him
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Re: TIN CHASSIS
`Herr Kruth` Ian?? Who`s he then?!!
- mrequipe
- Lapping the Tail Enders
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Re: TIN CHASSIS
Hi Tony yes I was asking about a full fabricated chassis, but I also need to know about fabricated Beam, spar (whatever you want to call it
) I have built stuff in F2 then its been rejected I dont want it to happen again
Its like the Rudi Kurth bike and others it happened but your not allowed to replicate it, which is probably a good thing 



http://www.mrequipe.net
M R Equipe the choice of Classic Sidecar Champions
19 Championship Wins in European / British Classics and F2 class.
Classics are the future
M R Equipe the choice of Classic Sidecar Champions
19 Championship Wins in European / British Classics and F2 class.
Classics are the future
- sidecar bloke
- Setting the Fastest Lap
- Posts: 221
- Joined: Sat Apr 25, 2009 7:29 pm
- D/P/T/M/S: Sidecar driver
- Full Name: Ian Johnson
- Location: Farnborough, Hants
Re: TIN CHASSIS
Basically I have no idea except he sounded German hence the "Herr" and apparently he had a tin chassis which Mike Richards is discussing.johnc wrote:`Herr Kruth` Ian?? Who`s he then?!!
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- One Lap Completed
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Re: TIN CHASSIS
RHS Tube, Rectangular Hollow Section, available in the 1960,s
- 666
- Setting the Fastest Lap
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- Location: suffolk
Re: TIN CHASSIS
Bike in pic built in 69-70 forks and s/arm made from rectangular tube by M L Harris (on bike). Also the disc's are floating and susp is by rubber band like fork's on speedway bikes
- sidecarracing
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Re: TIN CHASSIS
pictures of Rudi Kurth's 1967 Honda CB450 outfit can be found here:
http://forums.autosport.com/index.php?showtopic=109582
http://forums.autosport.com/index.php?showtopic=109582