It does feel a little high when you hit 55-60mph (although the bullet speedo on my 04 65 is at least 5mph optimistic)Here is a chart off of one of the other Bullet list-srv discussion sites:19T 50MPH-2870 RPM60 MPH - 3450 RPM70 MPH - 4025 RPM80MPH - 4600 RPM18T 50MPH-3029 RPM60MPH-3642 RPM70MPH-4249 RPM80MPH-4855 RPM17T (stock)50MPH-3207 RPM60MPH-3855 RPM70MPH-4498 RPM80MPH-5141 RPM