Cute!
Here's a short vid of another Iron Barrel 500 which is a bit more suited to the TT, currently racing in the British Historic Racing series, and one of our forum members, Bullet Whisperer.
Best part starts around 50 seconds in.
https://www.youtube.com/watch?v=dPQihZjiNhcP.S. - This bike has one of our Ace roller rocker big heads on it.