Bonneville America Forums Forums Technical Forums Performance Mods 19 tooth front: A performance evaluation.

About #360 here (combined weight) and 19T works fine. I switch back to the 17T if I take the bike to NC. Maybe this will be the year I just go with an 18T. I do lose a little top end with the 19, but I'm pushing a barn door of a windscreen and that's probably the bigger reason.