Originally Posted by ken cummings
Are you trike builders setting up an Ackerman linkage so the inside wheel in a turn turns a little farther than the outside wheel? The Ecodyne I got twenty three years ago has that. 0 degrees camber.
Thats it. Otherwise the wheels would tramp sideways. The inner-wheel needs to cover less distance then the outer, thus it must turn more. Ackerman's rule solves this.
Since the front wheels are supported on one side only I have no idea how I would figure the castor angle if it even has one.I know what Castor angle is thanks.
Ive never really checked castor angle from a trike (I'd usually look at the jig it was made from) but my best guess would b to place the trike on perfectly level ground, grab a protractor with an angle guage, stand the protractor on the ground (pointing front-rear) and align the angle guage flush agaisnt the kingpin housing. You'll know straight away. Then again, if ya just wanna know if you hav any castor (highly likely), just put your head level with the side of the trike, looking and level with the hub. Peer through the spokes and if your kingpin housing is angled (from this perspective) then u have castor. Hope that helps
. If I was a bit vauge I can provide pics.