Right, Just picked Up my new ET4 Leader, before that I was riding a preleader.. They both have been fitted with a PM tuning exhaust BTW
Firstly, the Leader is quieter on idle, feels smoother and not as much vibrations as the old one.
Secondly, the way it gathers speed. Now, I know these aren't exactly Ducatis or Yamahas so the difference may be little, But I could feel the the way the Leader Accelerates which honestly blows away the Preleader especially to 40mph. Albeit, the excitement isn't as thrilling because of the noise of the engine, it sounds like a turbine.. IMO. Top Speed on the other hand, well my old one did 55mph, the new one does 70+ which i tested on Hendon Way.. cough cough..
Lastly, It feels as though the throttle response is slower in the Leader, then again it just got serviced before I picked her up from a Dealership(which means she's been dormant). Guess, I'll just have to run her in again..