Custom made chassis using Harley Chopper frame and tank etc. Made from exhaust grade tube and fibreglass moulded Tanks and many other small touches. The L.C.S. resivior is in the fuel tank and the pumps are in the oil tank under seat.Strong enough to sit on. The system specs are another story. It's powerfull and has no air flow problems.Also has cool flame job air brushed on it.