Hey guys I'm thinkin real hard on this but considering a 205/60 to help with my optimistic speedo anyone one done it? Thanks its a 13 roadking

 

My 205 - 55 made my speedo read about 1 mph faster than I was going. The bike always read about 2 mph faster since new. So after the CT my speedo read 3 mph fast. I fixed this by using my ThunderMax to calibrate the speedo to my GPS.

Putting on a 60 series tire will probably not help if your speedo is optimistic, but it will ensure that it does not get worse. Some tuners (like my TM) include the option to calibrate the speedo, there are also some stand alone speedo calibrators you can buy.

http://www.motoparthub.com/HD_001_SP...JizBoC6vjw_wcB

 

Thanks PFwiz I'm going with the 60 now I know it will fit,mine's stock so stopping it from getting worse is the thing.