They worked 12 years together, between Aprilia and Derbi, Jan Thiel and Gigi Dall'Igna. The second one does not need any introduction, the first is an acclaimed genius of two-stroke engines, designer among other things of the Jamathi, a little gem that raced in the now defunct 50 cc class.
Jan retired and now lives in Thailand and on his recent visit Gigi went to visit him.