Polini is pushing new boundries with the Maxi Hi-Speed 9R. 9 variator rollers replace the old 6 and this means a larger surface area for smoother drive and quieter running. Delivery includes: complete variator with 1x set (9 piece) of variator rollers 20x12 at 9.2g, 15% stronger counterpressure spring, vario sleeve, 1x set of sliders and 1x tube of grease. Instructions included.