i have a dt 50 in italy i had it second hand it had got 7.000 on it its now got 15 .000 on i have had it for 6 months and i have i few things i need to do to it 1st i need a new seat any ideas where i can get 1 (i can get from uk )2nd it will do 100kmh is this goos it fells v slow 3rd tyer i need of road tyers thanks chris