Originally Posted by LukasM
The ticket is a wide ratio transmission and not trading a lower first gear for more revs at highway speeds, which is the only thing you are going to accomplish with a sprocket or countersprocket change as you suggest.
I can think of a couple of singles that do this very well (KTM EXC, Husaberg FE, Husky 610/630), but none of the twins. F650GS/F800GS has the same problem.
I agree completely. A wide ratio tranny is not even needed - the other gears work fine for the dirt as-is, but there is often a need in the gnarlier dirt sections to go slow and the current first gear does not allow you to do this without abusing the clutch.
I have also discovered that the Daytona 675 has a higher first gear than the 675 street triple. All of the other ratios are the same. The Tiger 800 is higher still.
It seems that first gear is the only ratio that Triumph plays with when going from one model to the next. In the case of the Tiger 800, I think that they did a poor choice for first gear.