As Keith points out standover heights are listed so you can also do PBH - 2.54 = standover as a starting point. That is to say the Standover should be 1in less than PBH (1 in crotch clearance in bare feet).
You can fudge 1 cm larger since you are wearing shoes which lifts you up, and 3cm maybe 4cm smaller on the 6deg frames. For skinny tires and road use go for the bigger end and for the fattest tires and off road use lean smaller. Bigger bikes ride more stable / smoother, may have less toe overlap (depends on tire size), and it's easier to get the bars higher so can be more comfortable as well. Ignore the actual frame size in cm, since it doesn't correlate to non-Riv sizing, classic Riv bikes, or anything you rode in the 70's. Unless of course you rode a bike way to small in the 70's & 80's like many people did in which case it might be the same. If I'm between sizes I also take top tube length into account when using drops, but it doesn't matter much at all for sweep back bars. -Dave On 4/8/18, Dave Small <smallvintagevend...@mac.com> wrote: > Thanks, Dave and iamkeith. I'll do some cipherin' and figure out what I > would need. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "RBW Owners Bunch" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/rbw-owners-bunch/jVTc77tiWYw/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at https://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
