185/55/14 have high side walls. too high for micra fitment to be near standard. and why go higher with poorer handling when you can go lower on sidewalls and get better feel and acceleration.
i think 195/45/14 would be best for overall grip. i havent heard of a 185/45/14. you can get 185/50/14. if you have less than a 6" rim though then get the 185/50/14.
you will be ok when lowering 60mm.
