High speed, bench, for 8.1 "Fireblade" crankcase for Gilera Runner 180 and for 8.1 "Fireblade" 100cc crankcase increased bores for crankshaft Ø oversized 25mm Piaggio and Minarelli version. Products intended exclusively for competitions, forbidden to use on the road. We decline any responsibility for improper use. Made in Italy product.