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So if I have a smaller wheel (reduced trail) but a straight fork (increased trail) then it should be ok? Just basing it on Wikipedia's explanations of rake/trail... Ideally I would like to have a seat-shaped front rack cargo area that extends beyond the wheel. It seemed to make sense in my head, but maybe I have not thought it through? This is a mockup (the smaller 24" wheel is just the black circle with the centre at the end of the straight "fork" end that is drawn in as a black line). The fuchsia area is where the cargo area would be (obviously have to be well attached/distributed to the frame):
jdmitch-
Not sure that logic would work, because by putting a smaller wheel on you are also steeping the head tube angle.
This website is super helpful for figuring out trail http://yojimg.net/bike/web_tools/trailcalc.php
Also, i would cut the headtube out and put a longer one in the extends past the downtube, that way you can mount your load lower and it will be more stable.
Old set of 1" bmx forks and a 20" wheel worked quite nicely for me. I just slid a 1.125" steerer over top of the bmx forks and welded it up.
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You better get good quick at making stoppies with that weight balance...
M_A_X
Carabo
Put the weight on the frame for sure.
As Mr strike says, it's all about the trail for the handling. Need to make sure it's nice and low, if I remember rightly, I made mine to be low 40s.
I've modified mine since that picture, I've put a new rack on it with supports going to the top of the head tube, it's way stronger! Took someone who weighed 14st on the front for 5 miles..
I would just order some steel as opposed to using a bit of trolley (as its galved and nasty to weld)
15mm Steel box section is cheap. I use Parkside steel.