In a chain drive (4), the wear of a chain (9) having a plurality of links (10), each of which is provided with a pair of pivot pins (11) parallel to each other and transversally spaced apart from each other and at least three strips (12) parallel to one an...

A supply system (1), for supplying an internal combustion engine (3) with air and fuel, is provided with a first fuel supply circuit (18), having at least one electro-injector (17) controlled by an electronic unit (16), an intake conduit (5) conveying comb...