Capristo Ferrari Portofino - Wheel Spacers 11mm Front / 17mm Rear (Star Shape) with Titanium Wheel BoltsCapristo now offers custom wheel spacer sets for the Portofino. Both are cnc milled from a solid block of 7075 T6 alloy and anodized. The front axle track is widened by 11mm while the rear is widened by 17mm. Both sets have a centering rim and come with titanium wheel bolts for maximum weight reduction and strength. Type 1: Star shaped, light weight wheel spacers fit within the contour of the OEM rims. front axle weight (11mm spacers): 337g rear axle