Re: Will this work?
Top speed varies due to a lot of factors, and no two motors are quite alike in output. I can say that the 48T sprocket and standard carb build tops out in the mid 40's (kp/h) as far as I know but it is just past break-in distance and that could go up a little still. On my beast I have hit 60 km/h WOT on level ground (but it does take a little while to get there) and nearly 70 travelling down the Knight Street bridge from Richmond (the bike began to speed wobble so I backed it down).
Top speed will be reduced by increasing sprocket size, but you gain a lot of power for hill climbing and pulling.
Any day that starts with a good ride is already a better day, and a bad day riding still beats a good day working.
My Builds: My Beast
, Harley59's bike
, my Cruiser