Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Fifty Plus (50+) Share the victories, challenges, successes and special concerns of bicyclists 50 and older. Especially useful for those entering or reentering bicycling.

Reply
 
Thread Tools Search this Thread
Old 08-10-06, 06:52 PM   #1
George
Senior Member
Thread Starter
 
George's Avatar
 
Join Date: Jul 2006
Location: Katy Texas
Bikes: Specialized Roubaix
Posts: 5,371
Sit bones

If my sit bones are 4" center to center and 6" overall and the b17 is 6 1/4", would I be better off with the b67 at 8 1/2" wide. Thanks George
__________________
George
George is offline   Reply With Quote
Old 08-10-06, 08:01 PM   #2
serotta
Senior Member
 
Join Date: Oct 2004
Location: NC
Bikes: Serotta, kestrel, Raleigh, Cannondale, Proflex, Santana tandem, Santana Stylus (single), Trek, Schwinn, Azuki
Posts: 806
I don't know George, but I was wondering who you get to do the measuring for you?
serotta is offline   Reply With Quote
Old 08-10-06, 08:11 PM   #3
George
Senior Member
Thread Starter
 
George's Avatar
 
Join Date: Jul 2006
Location: Katy Texas
Bikes: Specialized Roubaix
Posts: 5,371
I sat on a 1/2" piece of foam that they insulate houses with and it left the dents in it. Do it in your shorts and you'll get a pretty clear view, George
__________________
George
George is offline   Reply With Quote
Old 08-10-06, 08:31 PM   #4
BluesDawg
just keep riding
 
BluesDawg's Avatar
 
Join Date: Feb 2005
Location: Milledgeville, Georgia
Bikes: 2015 Specialized AWOL Comp frameset (custom build), 2015 Zukas custom road, 2014 Specialized Crave Pro 29, 2003 KHS Milano Tandem, 1986 Nishiki Cadence rigid MTB, 1980ish Fuji S-12S
Posts: 13,188
Quote:
Originally Posted by George McClusky
Do it in your shorts and you'll get a pretty clear view
Something about that just doesn't sound right
BluesDawg is offline   Reply With Quote
Old 08-10-06, 08:34 PM   #5
Digital Gee
I need more cowbell.
 
Digital Gee's Avatar
 
Join Date: Jun 2005
Location: Reno, Nevada
Bikes: 2015 Specialized Sirrus Elite, 2012 Masi Evoluzione
Posts: 8,111
Quote:
Originally Posted by BluesDawg
Something about that just doesn't sound right
__________________
2015 Sirrus Elite
2012 Masi Evoluzione

Proud member of the original Club Tombay
Digital Gee is offline   Reply With Quote
Old 08-10-06, 08:40 PM   #6
George
Senior Member
Thread Starter
 
George's Avatar
 
Join Date: Jul 2006
Location: Katy Texas
Bikes: Specialized Roubaix
Posts: 5,371
How else would you do it. I read somewhere that is the way they did it. I'd like to know myself if that's not the way. Thank's George
__________________
George
George is offline   Reply With Quote
Old 08-10-06, 08:42 PM   #7
Digital Gee
I need more cowbell.
 
Digital Gee's Avatar
 
Join Date: Jun 2005
Location: Reno, Nevada
Bikes: 2015 Specialized Sirrus Elite, 2012 Masi Evoluzione
Posts: 8,111
Quote:
Originally Posted by George McClusky
How else would you do it. I read somewhere that is the way they did it. I'd like to know myself if that's not the way. Thank's George
George, read your sentence, "Do it in your shorts, and you'll get a pretty clear view," slowly, and out loud. It will dawn on you why we're teasing you. Trust me. All in good fun, btw...
__________________
2015 Sirrus Elite
2012 Masi Evoluzione

Proud member of the original Club Tombay
Digital Gee is offline   Reply With Quote
Old 08-10-06, 08:54 PM   #8
George
Senior Member
Thread Starter
 
George's Avatar
 
Join Date: Jul 2006
Location: Katy Texas
Bikes: Specialized Roubaix
Posts: 5,371
From the trailer on the website - "In chapter 7, author Joshua Cohen gets to the heart of the matter, explaining in practical terms how to put seat selection theory into practice. In this passage, he describes a do-it-yourself way to make certain a saddle is wide enough for your sitting area.In order to avoid high levels of pressure on the soft perineal tissues, the width of the rear of a bicycle seat needs to be at least as wide as the center to center distance between the sit bones. This distance varies slightly from person to person and can be (relatively) easily measured with a straight ruler.To do so, lie on your back with your knees elevated. Place the end of the ruler in the approximate left outside edge of your left ischial tuberosity and mark the distance to the approximate right outside edge of the other ischial tuberosity with your other hand. It is important to do so lying on your back, with your knees bent, and your feet flat on the floor, in order to avoid activating the hamstring muscles which will make it more difficult to feel. [The book has an illustration.] A seat slightly wider than this distance will be able to distribute the pressure over a larger area and minimize any hot spots.Now that you have the distance measured, you can measure the rear portion of any seat to determine if it is wide enough for your anatomy. [So far so good. But Cohen goes on to explain two critical caveats that must be considered when applying your measurement to any given seat.]"
__________________
George
George is offline   Reply With Quote
Old 08-10-06, 08:55 PM   #9
George
Senior Member
Thread Starter
 
George's Avatar
 
Join Date: Jul 2006
Location: Katy Texas
Bikes: Specialized Roubaix
Posts: 5,371
You're right is was funny, sorry George
__________________
George
George is offline   Reply With Quote
Old 08-11-06, 12:40 AM   #10
Big Paulie
Senior Member
 
Join Date: May 2005
Bikes:
Posts: 2,259
George,

I have a friend who is a well-respected designer in a field outside of cycling, and whenever anyone begins to bug him about what they should or shouldn't do, he screams out, "Try it and see, dammit!" Of course, after 35 years of hearing this, everyone laughs when he says it...but the kernal of truth in his attitude is perrenially valid.

If all the registerees (is that a word?) of the Bike Forums pooled the money they've spent on saddles that didn't work out for them, it would easily be in the millions. Seriously. It's just one of the things that makes cycling a unique club. You just have to try saddles and see. They defy being an exact science. Even the pros are constantly changing saddles trying to find the perfect fit.

Last edited by Big Paulie; 08-11-06 at 01:56 AM.
Big Paulie is offline   Reply With Quote
Old 08-11-06, 01:25 AM   #11
Carusoswi
Senior Member
 
Join Date: Jun 2005
Bikes:
Posts: 1,180
Quote:
Originally Posted by George McClusky
Place the end of the ruler in the approximate left outside edge of your left ischial tuberosity and mark the distance to the approximate right outside edge of the other ischial tuberosity with your other hand. "
You lost me at the first tuberosity. I just hop onto my Arione and ride.

Caruso
Carusoswi is offline   Reply With Quote
Old 08-11-06, 02:05 AM   #12
jcm
Gemutlichkeit
 
Join Date: Dec 2005
Bikes:
Posts: 2,424
George,
You can rely on our collective sense of humor around here, especially the cheap shot variety. The nefarious Digital Gee started a thread awhile back on Haiku. Got pretty silly.

Seriously, the foam impression method works as well or better than some others. And, yes, you want a saddle that has enough material 'left over' to fully support the sitbones and the adjacent tissue. That's why I prefer a B67/66 type for riding in a non race posture. That is, when a majority of my weight is on the saddle.

If you have ischials that are 6" apart overall, you could experience the a$$-hatchet effect on a 17. They are only 6.7" wide. Personally, I prefer more material beyond my sitbones for support.

Direct answer to your question: IMO, yes, you would be better off on a 67. Mostly because of the bike you ride and how it will distribute your weight. You will like the springs, too. Not very supple, but they do work.
jcm is offline   Reply With Quote
Old 08-11-06, 02:31 AM   #13
cyclezealot
Senior Member
 
cyclezealot's Avatar
 
Join Date: Sep 2001
Location: Fallbrook,Calif./Palau del Vidre, France
Bikes: Klein QP, Fuji touring, Surly Cross Check, BCH City bike
Posts: 13,166
Very simple serotta. All one needs get is a but print.Some believe even the most innane subjects can be reduced to math.
cyclezealot is offline   Reply With Quote
Old 08-11-06, 06:35 AM   #14
Baggsy
Senior Member
 
Join Date: Mar 2005
Location: Rural Wyoming
Bikes: '73 Schwinn Varsity, 1964 Schwinn Racer, 1954 Schwinn Jaguar, 1950's Puch Bergmeister, 1980 Schwinn High Plains, 1973 Flandria, 1980's Diamondback Sorrento, 2001 Jamis Aurora
Posts: 295
Well George, to get back to the question...and I almost forgot what it was. I think the B-67 is suited to riders with a more upright position, cruisers, hybrids, comfort bikes. The B-17 is a road-bike seat, designed for more comfort in the aero postion, riding in the drops, tucked, etc. That said I have a B-67 on a Schwinn Varsity commuter bike that is comfortable beyond reproach for anything town can throw at it. They are heavy, OCP roadies scowl at them, and you won't see anyone riding the TDF with one. But they are nice, make no mistake about that. More retro than the B-17 for classics, but not quite what the balloon tire bunch want, they prefer the old hair-pin leather seats.

Me, I lean toward the Swift as being dead-sexy...clean lines, simple, classic...but I don't have one. With my luck it'd be as comfortable as sitting sideways on a split rail fence...
Baggsy is offline   Reply With Quote
Old 08-11-06, 07:56 AM   #15
BluesDawg
just keep riding
 
BluesDawg's Avatar
 
Join Date: Feb 2005
Location: Milledgeville, Georgia
Bikes: 2015 Specialized AWOL Comp frameset (custom build), 2015 Zukas custom road, 2014 Specialized Crave Pro 29, 2003 KHS Milano Tandem, 1986 Nishiki Cadence rigid MTB, 1980ish Fuji S-12S
Posts: 13,188
George,
Sorry to send the thread off in a spin earlier, but it struck me as unintentinally funny.

I believe that in other threads you have mentioned that between you and your wife you already have both of these saddles. Why not try them both and see which works best for you? Analysis is fine, but nothing beats seat-of-the-pants (literally) experience.
BluesDawg is offline   Reply With Quote
Old 08-11-06, 08:19 AM   #16
Kenal0
Senior Member
 
Join Date: Jun 2005
Location: Lake Forest IL
Bikes: Giant OCR 2, Flyte SRS 2
Posts: 1,422
If you are riding a road bike and care about weight then the sprung saddle would be out of place.
If you are riding a hybrid then throw the B67 on and give it a shot. Just the fact that it has the springs and is wider is going to almost be a garauntee that it is going to be more comfortable.
Kenal0
Kenal0 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:11 PM.