Just going from Riv's sizing guidelines: http://www.rivbike.com/kb_results.asp?ID=41
If your PBH is 85c your seat height will need to be about 75c. A 19 1/2 in bike translates into about a 50c, which is pretty tiny. You'd need a lot of exposed seatpost (20c +) to start getting close to your optimal seat height. Aesthetically a handful of exposed seatpost is optimal to my eye. If the top tube is horizontal your bars are going to be way-low. I'd get a bigger frame. On Tuesday, March 12, 2013 10:51:52 AM UTC-7, kps wrote: > > I've got a 1976 Super Course Mk II frame/fork (emerald green) that is, i > think, too small for me to consider building up. Anyone out there have a > 21-1/2" frame they would > like to swap for a 19-1/2" frame? I keep thinking I should try building > it up, as the fellow from whom i bought it said the measurements on my > frame (19-1/2") are identical to the 1976 Super Course Mk II 21-1/2" frame > BUT for the seat tube length. His girlfriend, whom he says is 5'8" tall, > rides a 21-1/2" frame, and from the photo i saw, she has the seat post is > mostly hidden. I've been reluctant to build up the 19-1/2" frame, but i > guess i could just put a seat post in there and see how high i would have > to put the saddle. > > I recently had a 1978 Raleigh Record mixte that was 23-1/2", and it was > HUGE for me. I ended up selling it to a male friend who is 6' tall, and > it's his favorite bike. That's what got me started looking for a 21-1/2" > Raleigh mixte frame. That's when the '76 Super Course Mk II came my way. > Trying to decide whether to try it our just let this one go. The Super > Course mixtes (Reynolds 531 main triangle) are just so hard to find, i > snagged it just in case. > > Any thoughts? > > (i'm 5' 8-1/2" and my PBH is 84.45) > > probably crazy to even think about this frame, but i do know there can be > enough variables in frame sizing that there's a SLIM chance it COULD work. > > -kps > > > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
