I am also just over six foot tall, hence my suggestion of a 57cm frame, however I made a big error in the inside legs measurement, as 88/89cm it turn out to be 34/35", not 33" like mine.
my concern of the sizing is simply the top tube length might be a bit too long for him (providing he did measure it from centre to centre), 60cm is quite a reach.
I am also just over six foot tall, hence my suggestion of a 57cm frame, however I made a big error in the inside legs measurement, as 88/89cm it turn out to be 34/35", not 33" like mine.
my concern of the sizing is simply the top tube length might be a bit too long for him (providing he did measure it from centre to centre), 60cm is quite a reach.