[RBW] RBW Saddle Height question
Hi all: One of the things I always wanted to know but was afraid to ask. The RBW method for determining saddle height is PBH - 10 to 11. The measurement is made from center of the cranks (the spindle of the bottom bracket) to the top of the saddle. Here are the questions. How many of you use this formula? Do you adjust it if you place the saddle all the way back on its rails? (Relateddon't laugh...where does one measure the top of the saddle...the area where you sit, the area right over the seat post?) I ask because my saddle height seems to be shorter than this (with MKS pedals and Addidas Sambas)..more like PBH - 15. I would like to raise it to Riv recommendations, but I was wondering what your experiences have been. Regards, Jay Demarest, NJ -- 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.
Re: [RBW] RBW Saddle Height question
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? (Relateddon'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 at http://groups.google.com/group/rbw-owners-bunch?hl=en.
Re: [RBW] RBW Saddle Height question
I believe from my experience that finding the right height, horizontal position and tilt for a saddle is a matter of personal experience and preference, with rules being simply a more convenient starting point than, say, starting with your saddle resting on the top tube. So the question becomes: how do you feel presently? Do you feel the need or desire to stretch your legs more? Raise the saddle a cm or so. Do you feel as if you can't get power over the top of the stroke? Try pushing it back a cm. Do you feel as if it is slowly slicing you in half? Lower it a cm. And so on. For me, it took 20 years of riding before I learned my preferences, and even now I continue to adjust slightly, by 5 mm increments, as season, shoes and astrological signs vary (just kidding about the signs; I always do my yearly height tuning in Mars/Ram.) Seriously, if you are inexperienced, start with the Riv instructions and adjust per the above. On Tue, Apr 20, 2010 at 5:46 AM, Jay LePree lep...@optonline.net wrote: Hi all: One of the things I always wanted to know but was afraid to ask. The RBW method for determining saddle height is PBH - 10 to 11. The measurement is made from center of the cranks (the spindle of the bottom bracket) to the top of the saddle. Here are the questions. How many of you use this formula? Do you adjust it if you place the saddle all the way back on its rails? (Relateddon't laugh...where does one measure the top of the saddle...the area where you sit, the area right over the seat post?) I ask because my saddle height seems to be shorter than this (with MKS pedals and Addidas Sambas)..more like PBH - 15. I would like to raise it to Riv recommendations, but I was wondering what your experiences have been. Regards, Jay Demarest, NJ -- 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.comrbw-owners-bunch%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en. -- Patrick Moore Albuquerque, NM For professional resumes, contact Patrick Moore, ACRW at resumespecialt...@gmail.com (505) 227-0523 -- 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.
Re: [RBW] RBW Saddle Height question
On Tue, Apr 20, 2010 at 6:46 AM, Jay LePree lep...@optonline.net wrote: Hi all: One of the things I always wanted to know but was afraid to ask. The RBW method for determining saddle height is PBH - 10 to 11. The measurement is made from center of the cranks (the spindle of the bottom bracket) to the top of the saddle. Here are the questions. How many of you use this formula? Do you adjust it if you place the saddle all the way back on its rails? (Relateddon't laugh...where does one measure the top of the saddle...the area where you sit, the area right over the seat post?) I ask because my saddle height seems to be shorter than this (with MKS pedals and Addidas Sambas)..more like PBH - 15. I would like to raise it to Riv recommendations, but I was wondering what your experiences have been. I'll mostly echo what others have said: the Riv method is a great starting point, but like everything else in bike fit, the details can vary quite a bit. Tim's note to put the saddle up until your hips rock then back it off a bit is good too. Make small adjustments, ride, repeat. I can do this for days when i'm setting up a new bike, or especially if i'm trying a new saddle. All of those parts have different dimensions, so you just have to tweak. Once you figure out what you're happy with, noting the resulting measurements can make it easier to set up the next bike for yourself, but the numbers themselves aren't important otherwise. -- Bill Connell St. Paul, MN -- 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.
Re: [RBW] RBW Saddle Height question
PBH minus 10, measured to the top of the saddle works great for me. Jim D. Massachusetts --- On Tue, 4/20/10, Jay LePree lep...@optonline.net wrote: From: Jay LePree lep...@optonline.net Subject: [RBW] RBW Saddle Height question To: RBW Owners Bunch rbw-owners-bunch@googlegroups.com Date: Tuesday, April 20, 2010, 7:46 AM Hi all: One of the things I always wanted to know but was afraid to ask. The RBW method for determining saddle height is PBH - 10 to 11. The measurement is made from center of the cranks (the spindle of the bottom bracket) to the top of the saddle. Here are the questions. How many of you use this formula? Do you adjust it if you place the saddle all the way back on its rails? (Relateddon't laugh...where does one measure the top of the saddle...the area where you sit, the area right over the seat post?) I ask because my saddle height seems to be shorter than this (with MKS pedals and Addidas Sambas)..more like PBH - 15. I would like to raise it to Riv recommendations, but I was wondering what your experiences have been. Regards, Jay Demarest, NJ -- 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. -- 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.
