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Discomfort(9 posts)

Discomfortmtnbikernc1979
Jan 22, 2004 8:41 PM
I was wondering if it is normal to feel like your rear end is going to fall off after you ride for a while? I'm on my 4th ride now and by the end of the 2nd hour I'm in pain. It really is closer to you know where up front. I get numb and have to stand up on the bike for a few seconds then sit back down until it hurts again. I'm fine in the beginning of the ride, just after a while it starts to hurt. Will it eventually go away with getting more time in on the bike? Thanks everyone.......Justin
Time to begin the tweaking of your new bikeScot_Gore
Jan 22, 2004 9:35 PM
Your body does break in after time in the saddle, so it will get better. However, from your description this sounds more of a fit issue. It's pretty normal to set your bike up to the standard guidelines, then begin making small adjustments based on how you feel and how it makes you feel.

Things to check first.
1) Is the saddle even with the ground. If you've got a slight rise or decline on the saddle you might experience your problem.
2) Measure vertical drop from saddle to bars. If you've got a big drop, say >=10cm, spacers or flipped stems may be in order.
3) When your riding on the hoods and you look down at your front hub, where is it.
A) in front of the handlebar (if so how much)
B) behind the handlebar (how much don't matter)
c) obscured by the handlebar

Reply back with your observations. This will give the fit experts here some basis to give you advice. When this post attracts C-40s attention, listen to everything he says. Do you understand KOPS and tried to apply it ? Check out Colorado Cyclist fit pages Section D here: http://www.coloradocyclist.com/BikeFit/index.cfm
And this:
http://www.bsn.com/Cycling/articles/kops.html
for another point of view.
Only you can decide what works for you.

Good luck.

Scot
thanks for the vote of confidence...C-40
Jan 23, 2004 8:32 AM
Saddle angle could be causing your crotch problem. A slight upward tilt is all it takes to cause excessive pressure. A slight downward tilt may produce the feeling that you're sliding off the saddle and place too much weight on the hands. That's why I insist on a seatpost with a 2-bolt clamping system that allows extremely small angular adjustments. Another possibility is just a bad saddle. A lot of stock production bikes have horrible saddles. It's really impossible to recommend a saddle though. What one person likes, the next will hate. Just stay away from extremes, either the ultralight types, or the big cushy "comfort" models.

Fitting a first time bike can be a long process. Another good site on frame fitting is www.cyfacusa.com. Start with KOP, then adjust the stem length. Checking KOP is hard to do accurately. I level the top tube with the bike on a trainer and ride for at least 10 minutes to be sure I'm in my normal riding position. A plumb bob dropped from the boney protrusion below the kneecap to the pedal spindle is a good starting place, but further back positions may be beneficial (I ride almost 2cm back). The foot should remain horizontal when taking the measurement. A helper is really needed to take this measurement accurately. If the saddle is moved back significantly, the stem must be shortened proportionately.

As for stem length, I judge by comfort and knee to elbow clearance. With your hands in the drops, fingers on the brake levers and the upper back horizontal, there should be some small amount of clerance between the knee and elbow. If this position is too streched out, then a bit of knee to elbow interferance may have to be tolerated. With more riding experience, the more stretched position may be tolerable.

Saddle to bar height difference is important. Not many folks can tolerate more than a 10cm difference. 8-9cm is usually plenty and a beginner may want far less. Measure from the floor to the top of the saddle near the nose and to the top of the bars and take the difference in the two measuremeants. Another comon setup problem is bars that drop the brake hoods far below the top of the bars, increasing the drop from the saddle.
Much of this stuff is individual.dzrider
Jan 23, 2004 5:53 AM
For instance if I'm on a real long ride and my butt starts to hurt, I lower my handle bars. That way I lean forward a bit more and get weight off my seat and onto my hands. This is the opposite of the previous poster, but I'm not him and he's not me.

In your case it sounds to me like your weight is too far forward on the saddle and you may be helped by moving the seat forward a little bit.

Here's my list of general tips for fiddling with bike fit.

Move nothing without a way to get it back to where it came from.

Make small changes and only change one thing at a time.

No measurement or placement is written in stone by God and true for everybody. Experiment in any way that you think will help.

If the experiment feels worse, try moving whatever you moved in the opposite direction before returning to the original position. Some of this stuff is counter-intuitive.

Always fiddle around with what you have already b4 you buy something new.

A seat that fits will need very little padding to be comfortable, therefore if a seat needs lots of padding to be comfortable it doesn't fit you.
re: Discomfortmtnbikernc1979
Jan 23, 2004 10:02 AM
Thanks to all who replied to help me out. I'm not sure if this helps but after somewhere around the first 45 minutes I feel like I want to scoot back on the seat to feel better but when I scoot back to where it feels good I'm almost off the back of the seat. So I have to slide back forward again and the soreness continues after a couple of minutes. I included a picture of my seat and this is the way it was set up when I got it. I had to put the white spaces in it to make the picture smaller so I could load it on this web site. The frame is a 60 cm and I'm 6'3.
get a new saddle...C-40
Jan 23, 2004 11:55 AM
Unless it's my imagination, the saddle looks damaged. What's with the dents in the side?

The saddle is also slid all the forward. Probably the result of someone using the saddle adjustment to change the reach instead of the stem length.
Get your saddle position and stem length dialed in, then...Fez
Jan 23, 2004 12:21 PM
purchase equipment accordingly.

You mention wanting to scoot back to feel better. Maybe move the saddle back and adjust stem length accordingly?

Or, if that is the position you want, you may want another seatpost to have the saddle centered on the rails. Its pushed way forward in that picture.
backwards...C-40
Jan 23, 2004 3:32 PM
Get the new saddle first, then get the KOP position and stem length adjusted. No sense wasting time with a junk saddle and they all sit a bit different.
The dreaded CODA saddle ...HouseMoney
Jan 23, 2004 1:57 PM
Saddle comfort is a personal thing, but CODA saddles seem to be universally loathed. I've had 2 or 3 different versions over the years on various bikes, and none of them ever lasted long.