No need to prep because scientists know that the pole has always been shifting. Navigation systems such as those used by pilots of aircraft are regularly updated to account for the shift of the magnetic pole.
I’m not familiar with cycle computers but if they are GPS yes they will update. The shift of magnetic pole is a constant movement and before modern aircraft had electronic navigation systems and GPS, pilots had to calculate the deviation between magnetic and true north before each flight. Pilots carry a flight plan with the route plotted manually so they can calculate the deviation manually if instruments fail.
I’m not familiar with cycle computers but if they are GPS yes they will update. The shift of magnetic pole is a constant movement and before modern aircraft had electronic navigation systems and GPS, pilots had to calculate the deviation between magnetic and true north before each flight. Pilots carry a flight plan with the route plotted manually so they can calculate the deviation manually if instruments fail.
It won’t be an issue as manufacturers of navigation systems would have to be aware of the constant movement of the magnetic pole in order to make your cycle computer. The movement is not something new.
I think some GPS systems for bikes use magnetic sensors in conjunction with GPS so they should update. If they are using only GPS the satellites use a different system so it won’t affect anything,
