I found that Rivendell's formula SH - 10 or 11 puts the seat a tad low for me. My experience has been PBH - 9.0 cm. I'm also positive I'm not under-measuring my pbh, as I've measured it myself with one other person, pulled up until it hurt, had it done at the LBS and it's always the same (or below my biggest measurement). I find that my knees are pretty sensitive to a seat that's too low, even by 1 or 2 cm, unless I'm riding standing out of the saddle all the time.
Other potentially influencing data points for my SH: -MKS touring pedals -usually ride in a pair of sneakers -size 10 -do not ride on my toes -brooks b17/nitto crystal fellow If the fronts of your knees feel sore after a ride, a good first thing to check is your seat height, to make sure it's not too low. I've read that a good method for finding the sweet spot is to set the saddle too high (which in terms of rideability, is impossible to ignore even for short distances) and incrementally lower it until you can ride the bike normally. Matt On Apr 20, 8:32 am, Bruce <fullylug...@yahoo.com> wrote: > Jay: > > After numerous saddle tweaks, I found that all my saddles ended up at 67 cm > in height from the BB center, and my PBH is 78, so I'd say the Riv formula > works really well for me. I measure through the center-line of the seat post. > Moving the saddle back or forward changes the measurement due to the angle I > pitch the saddle at, so yes, I have to raise or lower the seat post if I > slide the saddle around. Also, if I wear thick soled shoes (like KSwiss > hikers), I have to raise the saddle for efficient pedaling. My standard is > based on Addidas Sambas, or my Summer sandals (Teva and Nike) which have the > same sole thickness. > > Rather than tune your saddle to numbers on the riv site, you might try small > changes in height to see where the sweet spot is for you. That's giving you > an efficient stroke (you feel all the leg power going into the pedals when > climbing or accelerating) and you have no pain in front and above your knees > or just behind your knees. Then see how your numbers compare. You can of > course just try the riv suggestions and see how they go, and tweak from > there. small increments though regardless. > > Bruce > > ________________________________ > From: Jay LePree <lep...@optonline.net> > To: RBW Owners Bunch <rbw-owners-bunch@googlegroups.com> > Sent: Tue, April 20, 2010 6:46:17 AM > Subject: [RBW] RBW Saddle Height question > > Hi all: > > The RBW method for determining saddle height is PBH - 10 to 11. > > How many of you use this formula? > Do youadjust it if you place the saddle all the way back on its rails? > (Related....don't laugh...where does one measure the top of the > saddle...the area where you sit, the area right over the seat post?) > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to rbw-owners-bu...@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://groups.google.com/group/rbw-owners-bunch?hl=en. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
