Yes, black max and the Turf saver ll tires. the 16''. We have a really rough paved runway which I only use to get out to the grass side runways. I wore out those lightweight stock small tires in one summer....The turfsaverll are great. Have enough beef to wear well. So now they are getting lighter with every flight!!
Keep it simple and light!! My 37 HP jumps off and climbs great. I made the weight limit with light paint and NICO cyl , and any other thing I could SAFELY get rid of (struts for example)