Operation Capacity: 7.8 cu ft ( Volume: 13.87 Cu Ft ) One-piece cast iron ring gear for longer life Belt drive Heavy duty retractable tow tongue Large dump wheel Heavy duty over 755lbs This Concrete mixer is Gas Powered by a 5.5hp contractors grade Honda GX160. Commonly used for portland or fly ash cement mixer with small stone and sand. Has Tow Behind as standard feature.