GRUPPO TERMICO 80CC E TESTA D.47,6 C LUNGA per Benelli 50 491 Sport 1998-1999
Complete cylinder kit (incl. piston and cylinder head) Sport Pro 80cc long stroke by Athena. Nikasil-plated aluminium, 5 transfer ports, single exhaust port, single-ring piston (12mm pin) and high-compression cylinder head.