Saddle sizing is mostly about perch bone (sit bone) width, just like frames are mostly about PBH. The Rivet site has a procedure for measuring your sit bone width. It is not a be-all end-all for determining the correct saddle, but knowing your sit bone width is another tool in your arsenal. If you have narrow sit bones a B17 is probably the correct seat even upright. I ride a B68 with drops (mounted fairly high) and a B67, B71, or B73 upright (I am heavy enough for the springs to be functional). But I also need a 54 cm frame with a 60 cm top tube (6' with an 83 PBH). It is the reason that I have a pile of stems and handlebars for experimentation. Not easy if you are on a budget.
Laing Cocoa FL On Tuesday, April 23, 2019 at 12:47:40 AM UTC-4, Joe Bernard wrote: > Yeah, I bought the hype for B67/8 being better for upright, too. Not for > me, that wide "shelf" you sit on the edge of drove me crazy. All my bikes > have upright positions - I ain't no racer boy! - and they all have B17. -- 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.
