Rear Tire

[woodchuck]

Just wondering if any body has put a larger tire on the back than what is installed on the spyder. Hoping to lower rpms a little. I have the 30 tooth sprocket from mels and on saturday went for a 150 mile round trip and used 4 gallon of gas which comes out to 39 mpg. Would this mess up the computer and or speedometer.

[NancysToy]

Mismatch the front and rear tire sizes by too much and the nanny will protest.

[MarkLawson]

My dealer told me about a customer with a Spyder that began throwing multiple error codes (seems like he said some 7 or 8) and going ino Limp Home mode. They checked everything and couldn't figure out what was wrong. They'd clear the codes and take it out again & within a few miles, were limping home again. They finally call BRP and was asked to check the rear tire. Sure enough, the customer had just put on a different size. It apparently throws everything out of whack with the computers.