Quote:
Originally Posted by robo
If you have a dig about on here someone did an explanation of all this. The mushrooms dont add caster they give you trail.
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One is as good as the other:
Fixing the Sierra's trail inceases positive caster distance, too. It's the distance between the kingpin axis' projection intersection with ground and the centre of the contact patch, and it is precisely the lever that does self-centering.