Sizing and older Burly Qs
Hello all, and please pardon the newbie questions.
I've got a line on a 92 Burley Duet, sized 22/20 according to the seller. Before I drive all the way over there I'm wondering if it will fit. I ride a 58cm effective TT and my prospective stoker rides a 55cm eTT. Although 22/20 is not a current size, looking at the specs for a current Duet, a 22" front is a 57cm TT (I assume that's effective). That's good, I can live with that. But a 20" rear is a 70cm TT. What does that mean and how does it translate into stoker fit? Also, can I use these numbers on a bike built more than 10 years ago or has Burley changed its sizing significantly in the interim?
Thanks in advance, etc.
PS--Yes, I already read the 5'10" stoker w/ long arms thread. It helped, but I'm not sure I understood it all.