Need more capacity than the 6 cu. ft., but not as much as a 9 cu. ft This Stone Concrete 7 cu. ft. mixer can do the job. 4.80 x 12 (20 dia.) high speed tires, tapered roller bearings, 46 wide axle, retractable 2-3/8 O.D., 7/32 thick towpole, pintile style hitch, 24 dia. handwheel discharge, long life drive gears and dump lock. Spacious cowl for maximum ventilation