Am going to be a contrarian here. At 6' and 89 PBH normally I'd be on
a 61 or so frame. Except for the Bleriot, every single time I've
tried a Rivendell in that size it's felt like I've been on the rack.
Arms straight out with no bend to reach the hoods. Scoot forward on
saddle to get into
I think that a 59cm is on the tall side of the range for someone 5'
9. As Seth said ,standover is usually secondary to the Top tube
measurement. Of course stem length and saddle setback can adjust for
minor ( 1-2cm) differences. I usually try to start with the top tube
measurement and a 100mm stem