So measurements !
First off I measured each wheel not sat on it:-
Original seat position @ empty | Front | 10kg | bathroom scales unknown accuracy |
ditto | back | 10kg | same |
Original seat position with me sat on it | front | 11kg | we may have found |
ditto | back | 40kg | the problem Houston |
Seat move 6" forward with me sat on it | front | 25kg | digital luggage scale |
ditto | back | 36kg | digital luggage scale |
So I added 1kg to the weight on the front with the original seat position !
I took a flyer and decided to try 6" further forward [ I can always move it again , it is easy to do ]
Now the figures look better however are they ridable ?
It now looks like this :-
Still not as long as the Python so may still fit inside car with a little tweaking ?
Next up I need to find room for my feet , whilst the pedals now clear the cross beam [ which is actually much to high ] my feet don't as feet hang over the pedals approx 4" forward from pedal centre and 8" back from pedal centre.
Also looking at width ?
Working on the assumption we adopted the EU's 1m width in our terms 39" I really don't want to exceed 36" [ yes sentimentally 1yd ]
So this shows where 1/2 my yard is going
4" for hub width
5" between hub and frame
9" between frame and vehicle centre , the area I occupy.
As the wheel can turn and occupy the full 5" available I should be able to work out the turn angle and from that the turn radius for both a 16" wheel and a 20" wheel.
Talking of wheels I got a pair of 16" for playing around with , and took this picture:-
of course I also had my scales down stairs so it would be foolish not to ?
24" on left with SA hub brake hub = 2kg
20" with steel hub and poor heavy tyre = 1.79kg
16" with Schwalbe tyre steel hub but no inner tube 1.03kg
Food for thought ?
16" wheels if you could suspend all for wheels for less than 1kg per wheel they would be same weight as 24" with no suspension
16" wheels if you could suspend all 4 wheels for less than 0.7kg per wheel they would weigh the same as the 20" wheels with no suspension
Paul