A question from England. Going to put a Toyo Proxes TR1 225/50/15 car tyre on the rear of my 2016 Spyder RT Limited.Usually ride 2 up, I weigh 80 kilos and my wife weighs 60 kilos. Reading others posts, people use anything from 18 psi to 28 psi pressure. Would appreciate replies stating what pressure you use so I can start off with the most popular. Thanks in advance.