for Vespa ET2/ET4/LX/LXV/S 50ccm 2T/4T also for APRILIA/ITALJET/PIAGGIO Scarabeo/Sportcity/Liberty/ZIP/Set Torpedo, 50-100ccm 2T/4T AC/LC 6 rollers 19×15,5 mm 3,8/4,3g 14?? for 16mm crankshaft stump Product description The Polini Maxi Speed is a powerful alternative to the expensive original variator for all Maxiscooters. This sports variator is built to comply with high-quality manufacturing standards. The bushing has improved lubrication through two fitted o-rings. This makes for less friction compared to variators of other competitors. The Maxi Speed Control achieved top results regarding performance and reliability in many performance tests! This variator is available in two versions ?C the “Maxi Speed Control” with 6/8 roller weights or the “Maxi Speed 9/12 roller weights” with 9/12 roller weights. The most obvious characteristic of the “Maxi Speed 9/12 roller weights” are the 9 or 12 roller weights as compared to only 6 such weights that are standard. Acceleration of y