I put new 5gram roller weights on the agility 50 and also found out that my variator bushing is not restricted, next I am going to put in a new spring, First test drive total difference in the way the scooter revved and I also took a steep hill upward at 35mph and it was like I was riding on flat road!! There were stock 6.3 gram weights in there and man did they look ugly!! Good day for scootin today!