Hey @heckers, I’m the engineer that designed the dead reckoning boards (and many of our other GPS boards). I’m sorry to be the bearer of bad news but the M8U and the F9R do not support dead reckoning on bikes. The module itself does not account for the pivoting of a bike and so probably restarts calibration every time that you turn. I actually had asked an engineer at ublox about this during our products’ development. They do have other dead reckoning modules that do support bikes, and I’m foggy on which ones those were, but for whatever reason those capabilities were not put into the these two modules.
As to your second question, if you calibrate the module on something else, then it will not give you accurate readings when attached to a different vehicle. The calibration process is really about the module calibrating to the vehicle its attached to, not about calibrating the module so that its functional - if that makes sense.