Good info - do you have a part # for the 16t? Was it KTM part, or other? What was the increase in your MPG (fuel efficiency)
I'm currently running a 14t non-rubberized aftermarket (=cheap) - but I do more trails than road right now. OEM 15t I was getting 'about' 50-54mpg. with the 14t (and whacking the throttle off road) i'm getting about 40-43mpg. Might be riding across the USA this year on the TAT and getting better mileage would be a huge plus!