2009 YAMAHA TMAX, MAXIMUM SCOOTER Blurring the boundaries between scooter and motorcycle - a super sport automatic fuel-injected, liquid-cooled, four-valve per cylinder engine boasts, controlled-fill, die-cast aluminum frame, 43 millimeter front forks, four-piston caliper dual front disc brakes, and rear disc brake. Plus a multifunction instrumentation with speedometer and tachometer and radical sports styling and fuel economy up to an estimated 47 miles per gallon with a fuel tank that holds four gallons.