The wheel axle built by POLINI for PIAGGIO scooters has been designed to have the perfect completion with the gear casing and the elongated gear POLINI Motors. It differs in these technical characteristics: Emptied the interior to lighten and balance rotating masses without penalizing robustness. Stretched towards the end of the wheel nut, it allows easy mounting of the POLINI Torsen WD. Calettamento Ø 27.