On Mon, 4 Oct 2010 16:21:34 -0500, "Snag"
wrote:

wrote:
On Mon, 4 Oct 2010 08:00:32 -0500, "Snag"
wrote:

Karl Townsend wrote:
I'd settle for a set of sketches of the geometry ... the budget on
this one is "do it yourself or you can't afford it" .
We've decided to sell her Kawasaki since she's just not all that
hot on leaning into turns , and my budget is whatever I can get for
it . Probably somewhere in the $700-$900 range - which will buy the
materials (I hope !) .

If you're rolling yer own...

Can you start with a shaft drive bike? (That would not be the Honda
750, its chain drive) Then take the smallest rear wheel drive car
you can find for drive and suspension parts.

I've seen a few people that can just do this. For most it would be a
nightmare to design.

Karl

Well , the thing is that I already have the CB750 , and it's paid
for . Got some ideas for casting a housing for the diff out of
aluminum I have on hand ... start with a lost-foam casting , or
maybe make a wood pattern that I can alter for offset depth to
accomodate the sprocket , since it's off-center . Might be able to
incorporate a single 4-pot caliper on the diff housing , that'd
simplify things a lot too . Ideas , ideas , streaming thru my head
... I had a hard time getting to sleep last night .
You do NOT want a single rear wheel brake on a trike - trust me.

It wouldn't be on a wheel , but on the spider/differential housing . Still ,
there is a chance of unequal braking with a normal differential - but if
it's limited slip ...
Likited slip on a short coupled trike with a light front end is
asking for trouble. You DO want to be able to steer it on damp or wet
pavement.

Be safe. Use a brake on each rear wheel (inboard or outboard doesn't
matter) and an open differential.