[ricebike]

thanks for the update... admire your tenacity to try to stay within those limits

dunno if someone will make a custom speedometer gear set up to your specs... most of the speedometer gears I took out on electronic speed sensors are mostly made with plastic... but with a 60's engine and probably cable-operated trans speed sender, you'll probably have to dig further into the depths of teh internetz to find another enthusiast striving for the perfect speedometer calibration :P

if you had an electronically hooked-up engine/trans, it's as easy as plugging into the OBDII port and changing it...