Aaaaaaand there you go.. thanks kluven for proving me right
53mph @2000rpm = 79.5mph @ 3000rpm.
53mph is also close to 80kph which might explain the 80@2000rpm statement.
I'm going to be an argumentative so-and-so here
That was drivetribe "at a guess"...
Would effectively be the same as changing our current 5th's ratios, since ours does 80mph @ 3000rpm in 5th and the new bikes do 80mph @ 3000rpm in 6th... and nobody did this mod with the old bikes because.... (reasons)
Afaik you need either the Triumph manual/spec sheet, the paired gears' teeth numbers, or the input & output shaft speeds per gear (with accurate tacho & speedo readings), to determine gear ratios.
We don't have any of this info...
If you assume the speedo and tacho info from the pics/vids is accurate (just to get an approximate gear ratio), you will also need to know the crank vs the primary gear on the clutch ratio to determine input shaft speed,,,,,
need to know the circumference of the rear wheel (easy figure out) AND the final drive ratio, AND the torsional damper (if it has one) ratio, to determine output shaft speed....
There are a lot of unknowns there... unless there is another way of calculating gear ratios?
True but the imported bikes have English registrations (high certainty = mph)