Just put a schwalbe cx tyre on front and 1.5 city jet on my 456 tank bike. I’ve been moaning for ages how slow it is and a chore to ride on the road and so craving a new bike. Took it out today and it flys. So much fun. Really does feel like a new bike. That and a little seat and handlebar tweak. Spinning out in top gear. I never do that.