Other than the obligatory field bikes, C50/70 and 90's and a CB250G5 my first road bike was a MT5. Bought it as a non runner (cheap), rewired it and got it going.
 Then the tuning started and ended up at 65mph everywhere. Limited only by the gearing. Couldn't get any smaller on the rear sprocket and the front almost rubbed the cranckcases 

 Covered 18000 miles on that little thing and it never blew!!! 
