Rear Tire Size to use with 15" front tires

[scooternc]

Just received the front tires and wheels for the tr1ke kit and was wondering the rear tire size to complement the use of 15" front tires. I've only seen a few threads that went with 17" wheels up front but if someone that's using 15" front tires could send a reply or post it would be greatly appreciated. Thanks for the help..........

Scott

[Deleted]

I imagine you will be stuck with the factory R1 rear wheel, which like most big bikes will be 17" I imagine you will fit a slightly higher profile tire on the front.