I was just catching up on posts. Wow the RX4 looks beautiful! The dual front brakes is a better way to go. However, that's double the parts for a brake job! I don't even have dual rotors on my Harley Dyna! Thank God I don't, cause that would turn a brake job that costs under 70 bucks to one over hundred.
Anyways, this would probably be a better option for my husband. The RX3 goes really slow with him on it uphill. With me, it does a bit better of a job.