6'7""
I removed the standard cushion and replaced it with the bolster cushion that is typically put under the standard cushion for the shorter pilots. This accommodated my 6'7" son without his head hitting the canopy. My own 6'5" frame fits very well in the left hand seat without hitting the canopy. Kroger sun screen forward and head sets on and we still didn't have any clearance problem. N712BK 180 hrs