I Put Michelin C2s on my RM and the speedo is fine. With original Dunlop’s my speedo showed 3 miles faster than my Garmin GPS. The Michelins may actually help correct the dispariety between my speedo and GPS.I'm about to change out tires on my 2014 Chieftain and I noticed that the Michelin rear would be a 180 65R 16 rather than a 180 60 R16 Dunlap that came on it. Will this throw off the speedometer/odometer?
Your new tire was it a Michelin ? and did you replace the front with a Michelin Bias? ThanksI just put on my second 180/65B/16,[bias,not radial],and found that I got better tire mileage,a better ride,an accurate speedometor reading,and the best part,it was less money then the radial tire that came on it from the factory!! So it's a win,win for me.But,each to his own! Dave!!!