Looking at a 2012 Street Glide. Current owners state that the drive pulley on the tranny was changed to a smaller one for a little more get-up-and-go. Does anyone know how this should be compensated for for the correct Speedo and odometer reading?

 

the ecm can be calibrated with the use of tts master tune or power vision.

 

Correct, as above, you need some sort of device to calibrate the speedo. Many options out there.

With a smaller front pulley you will end up going slower than your speedometer says without adjustment.

 

Welcome to the Forums

possible they already recalibrated- check vs GPS on your phone- that's easy enough.

The only reason I can still calculate percentages in my '67 GMC had a changing rear end and my speedo was 15% low...so constantly working out math in my head....


mike