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.I set the caster at 5 degrees.
Many vehicles increase caster as they come off center, similar to the flop of a m/c front wheel. The Porsche 914 (iirc) looked like it was coming off the wheels at lock. The effect is to reduce the turning radius when you're hard-over. There are a lot of front-end 101 write-ups for the DIY. I looked into some designs and considerations when I was starting my trike project. The complexity was one reason I decided to do a conventional trike for my first attempt. The easiest way is to find a complete donor front suspension/steering and modify from there. Otherwise you've got a long learning curve to understand the theory, and a few dry runs before you get it roughed-in. If you expect it to all work on the first attempt you will be hugely disappointed.Unequal A-arms have a natural relationship between neutral camber and the inboard pivot points. With a given length to the upper and lower, the pivot points are predetermined. Here's my trike's unequal a-arms. Notice the angle of the vertical-ish struts. That's the only place they can be. You are correct, that is why I am using a Honda atv suspension.I can't stand another dissapointment.btw what is your oal width or your trike rear tires. Thanks ps I did read ad nausium on the topic .upload images