I know it's been said before, but jeezus the bike feels better even on a 3-mile test run. Wish I'd done it sooner!

What gearing are you running? Standard? If you'd gone down 1 one the front and gone up 3 on the back like I have you'd really notice a difference.

What effect does it have on the speedo going up 2 teeth on the rear?

Is there some sort of online calculator i can use to see the effect on top speed too?

@ Mick, bog-standard 15/40.

But the old sprocket was creeping into the red and I'd no idea how many miles it'd done.

There was a converter on here ages ago and a scientific formulae. Someone will know where it is. mine will be way out though.