Here's the formula BUT....
.067 v2/r = tana
the constant 0.067 depends on many difficult to measure things like rider weight/geometry, bike weight/geometry, tire dimensions/u, street surface, how the rider is sitting or hanging off. 0.067 is anything but constant. You can't calculate it, you have to measure the 3 variables first. The maximum lean angle is much easier all you need is u=tana.