I sent pictures and serial number to Merckx, and they said it was a 89' MX from the 7-eleven team and that it looked to be a repaint as some decals were missing, but they don't have any records beyond that to show rider. I guess it could've been a corsa w/max tubes... not sure when MXL came about, but could have been preproduction for some tall ex-pro, just going off what the guy at Merckx said.
I started looking up heights of riders mentioned above, even started thumbing thru my 7-11team history book, although some I can't find. Gerhard Zadrobilek looks like he ride taller bikes but that's just in pictures. Lots of 6'+ riders on Motorola on the one brochure I have.
This is the bike in question.
