Tire size questions 98 Z3

Totally stock 98 Z3, taking off style 42 (7x16, 46 offset) stock wheel with 225/50-ZR16. Just refurbished style 40 (7.5x17, 41 offset) and stuck whether to mount
225/45-ZR17 (same overall as stock) or can I go to 235/45-ZR17 with no headaches. Looking at summer tires, weekend fair weather driver,
she goes back to sleep after the trees shed their leaves.