The Polini Max Hi-Speed is one of the most drivable variator's available for Maxi Scooters. Real attention has been paid to the build quality that makes better use of the belt than the original variator. This means that the ratio of the variator changes in low-torque situations. This results in improved acceleration and higher top speed. Both reliability as well as the build quality are markedly improved over the original. A sealed slider bearing with cleanly machined bearing bushes greatly reduces friction and the build up of gunk when sliding. The result is perfect shifting and longevity from reduced friction. Variator weights: 20x12 (11g). Delivery as pictured and suitable for the following Yamaha models: X-City 250i 07-08 SG191 X-City 250i 09-10 SG192 X-City 250i 11- SG194 X-Max 250i 05-06 SG161 X-Max 250i 07-09 SG162 X-Max 250i 10-12 SG221 X-Max 250i 14- SG26 X-Max 250i 2013 SG257 X-Max 250i ABS 11-12 SG222 X-Max 250i ABS 13 SG252 X-Max 250i ABS 14- SG262 X-Max 250i Black Max 09- SG162 X-Max 250i Iron Max 16- SG266 X-Max 250i Momo 13-15 SG257 X-Max 250i Sport 11-14 SG224