Hello guys, i have a 73 TX500, i'm looking to change both my tach and speedo to a smaller mini gauge set up. My question is what raio speedo do i need to use. 1:1 OR 2:1 or maybe something different? also will any aftermarket tach be the same as long as the cable fits? Or is there a certain ratio i need to use? Thanks for any advice you have.

hello, i'm trying to do the same thing w/ my TX500. have you had any luck, have you made the swap??

I think its 2230 to 60mph its called. that's what I have on my tracker and its accurate!