After I installed my Variator, Clutch, front caliper, and quick throttle, My next upgrade are the rear suspensions.
There are many brands to choose from: RPM, NCY, RRGS, Stage 6 etc. I chose GEARS RACING model HILL-2 rear shocks for my Scooter. The shocks come with a REAL reservoir and are fully adjustable from spring preload, compression, height, and rebound.
This particular model is made for Street and Track, therefore is not super stiff on road and perform outstanding on turns. Riding my Scooter with the GEARS RACING shocks gives me more confidence on the road especially when i hang a sweeper turn.
I also ordered some Dunlop TT93 street/track tires. Once i get those tires installed, I will goto the local mini bike track and test it out.