Without wanting to spoil the party, let's remember that these Enfield speedometers are very optimistic.
Especially at higher speeds.
I remember when I first got my bike and I was cruising around at 65mph all the time, and it was super smooth at that speed. I was getting irritated that cars were passing me when I was doing 10mph over the speed limit already.
Or, so I thought.
Then I used a more accurate gauge of a radar sign that shows your speed by radar, and I was really doing 55mph, when my speedo said 65mph.