Techie stuff / set up data

beachcomber

beachcomber

TJ - Beachcomber
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Thought this might be a useful area for folk to dip into for that toe in, camber, etc....... info.

Wheel lead can dramatically alter the dynamics of your outfit. I had one of my road outfits set up with race chair lead and it was super nimble around the bends and twisties and was set up primarilly to handle WITHOUT a passenger doing their normal antics. WITH pasenger it was uncatchable and even gave some solos a run for their money up the lanes to the Owl [ nee Woodlands ]

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What was the second pic?
Having been an Automotive Tech who specialized in alignments in my previous life... I understand camber (lean out), caster, and toe and how they effect stability, performance and tire wear. (at least on 4 wheels) Seems very similar
 
Im seriously considering turning an 550 maxim I was given into a quasi racing sidecar setup. Got any pointers on where to look for construction ideas?
 
HD

Don't know why the 2nd pic disappeared ! I'll dig it out and post up again.

Yes to theory on geometry. The "why" of the lean out has always been questionable to me.

Early blurbs gave the reason "to counteract the effects of the crowning in the centre of the road".

UK roads were heavily crowned up until the 70's to compensate for poor drainage, so whilst the chair was at a slight angle down the crown - the bike was pretty vertical towards the top

That said - ALL my outfits [ 16" wheels all round ] were set up with the bike and chair wheels vertical [ no camber ].

I suspect that the set up info. was a hangover from the days of the double adult / child adult chairs that were pretty heavy.

There were MANY compromises to be made - some chairs had a suspended chassis' - some not. Rider and pillion - with nobody in the chair.......................... all sorts of combinations [ pardon the almost pun ] that the feeble suspension ofthe day had to cope with.

SWH - there's some pretty good illustrations on these posts of general layouts. Depends on your skill / facilities as to how far to go.
 
+1 ..... I've had to reset my outfit with zero lean out. Puts less strain on the forks too with one leg working far more than the other. A fork brace is a must if you are not ready to invest in leading link forks £$£$
 
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