Kymco Downtown 300i 0-150km/h with and without Dr. Pulley sliding rollers (videos taken at the same part of the road). The sliding rollers improved the acceleration generally (0,5sec faster at 0-100). Top speed was also slightly improved.
kymco, downtown, nikita, 300i, dr., pulley, sliding, rollers, 0-100, 0-150, km/h, scooter, acceleration, modification, tuning