Paul, I have the same mods as you and am happy with the way the bike performs, according to my tacho and speedo (if you can believe them) I'm doing 3200 revs at 100kph.. 3800 revs at 120kph, not really very high revs barely half way through the rev range, my only concern with a 19t is my clutch, my wife pillions with me a lot and I noticed that even with one tooth less on the rear sprocket more clutch was needed to get of the mark I felt that anymore would put a fair bit of stress on the clutch. I'm sure once we were up and running the bike would be ok with a 19t. I'll be interested to here what you think if you do change..
