The Kit includes 3 clamps with 50/52 mm diameters to fit different motorcycle models depending on the diameter of the front fork (Ø 48-55 mm). All the components of this mounting kit are made of technopolymer: this synthetic material is very ductile and therefore removing the upper fork tube from the top plate is not required to mount the product. The Kit includes 3 clamps with 50/52 mm diameters to fit different motorcycle models depending on the diameter of the front fork (Ø 48-55 mm). All the components of this mounting kit are made of technopolymer: this synthetic material is very ductile and therefore removing the upper fork tube from the top plate is not required to mount the product.