Know the rules The Paceline Forum Builder's Spotlight


Go Back   The Paceline Forum > General Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 08-24-2007, 06:40 PM
CarlosContreros CarlosContreros is offline
Senior Member
 
Join Date: Feb 2004
Location: Central Florida/all of USA!
Posts: 422
Question Saddle Fore..Aft? which method u use?

Just wondering?

Pruitt method...drop a line from front of kneecap should reach to front of crankarm?

Lemond method..drop plumb from front of knee should bisect center of pedal axle?

Serotta method...tibial tuberosity line should bisect center pedal axle?

I'm continuing to address my 1/2" shorter right femur....and I've found my
knee position is about an inch behind the pedal axle when using Lemond method..of course it's an inch plus on my right side 'cause of my shorter
femur over there.

I feel it might be time to move forward a bit.....
and doesn't a saddle adjustment of a 1/4 inch work out to about a 1/2 inch
when you talk 'bout your KOPS knee-position?

thanks!
Reply With Quote
  #2  
Old 08-24-2007, 07:45 PM
regularguy412's Avatar
regularguy412 regularguy412 is offline
Veni Veloce Vomiti
 
Join Date: Feb 2007
Location: Kudos to Ahneida for a twist on his 'title'
Posts: 2,738
I started out --

-- using the LeMond method. However, after I spent 4 hours on the fit cycle at my Serotta dealer, I found that my right leg was about 8 mm shorter than the left. It's not as much difference that you have, but I had long battled recrurring saddle sores on my short-leg side.

I also found that I felt more comfortable with a more rearward position, that is: my saddle nose is about 4.5 cm behind the BB. That puts my tibial tuberosity _WELL_ behind the pedal spindle when the crank arm is in the forward horizontal position. In this position I feel that I have more power and that my spin is smoother. I shimmed my right (short leg) cleat by about 3.5 mm. This distance is about half of the total shortage ( on that side ).

There has also been a lot of discussion recently on this board about arch cleat placement. I can see how this change could help some people. I tried it. I moved my cleats as far back as I could ( though I didn't ream out the cleat holes to get them farther back). I just wanted to see if the initial (small) change would net any results. It did show a result, but not a favorable one. I chose to not only move my cleats back to their original position, but I also moved them about 3 mm farther forward. This seemed to help me get my foot over the top of the stroke and drop my heel. In this new, farther forward cleat position, my hot foot has almost completely disappeared.

IMHO, the heel-dropping technique achieves roughly the same 'straightness' of the leg as the arch cleat method does when the foot goes down through the stroke. For me, I gain the benefit of the arch cleat method, without losing the 'snap' one needs when climbing out of the saddle or sprinting ( some have alluded to these issues as a 'problem'). Heel-dropping also takes some of the pressure off the ball of the foot, since in a way, the rider is 'pulling' the pedal down with some of the force going through the heel of the shoe. At least, this is the way it feels to me.

You might want to consult an experienced fitter or sports medicine professional, but shimming the short leg and moving the cleat slightly forward on that side could help even out your leg length discrepancy. Just remember that if you make adjustments, make them in small increments. It takes the body time to adjust to any change.

Mike in AR
__________________
2013 Serotta Fondo Ti w/Enve fork
Reply With Quote
  #3  
Old 08-24-2007, 08:02 PM
saab2000's Avatar
saab2000 saab2000 is offline
Senior Member
 
Join Date: Dec 2003
Posts: 10,538
There's a method? Put it to the stops (as far back as possible) and if need be move it forward. You'll find where it needs to be.
Reply With Quote
  #4  
Old 08-24-2007, 08:08 PM
dancinkozmo's Avatar
dancinkozmo dancinkozmo is offline
Senior Member
 
Join Date: Jan 2007
Posts: 2,477
Quote:
Originally Posted by saab2000
There's a method? Put it to the stops (as far back as possible) and if need be move it forward. You'll find where it needs to be.
+1
Reply With Quote
  #5  
Old 08-24-2007, 08:10 PM
markie markie is offline
Senior Member
 
Join Date: Jan 2007
Posts: 1,649
Quote:
Originally Posted by saab2000
There's a method? Put it to the stops (as far back as possible) and if need be move it forward. You'll find where it needs to be.

Ummm, are you my long lost brother? I thought I was the only one that did that.
Reply With Quote
  #6  
Old 08-24-2007, 08:13 PM
Fixed's Avatar
Fixed Fixed is offline
Senior Member
 
Join Date: Feb 2005
Location: Living Now in San Francisco
Posts: 19,005
mess.fit kit wrench in pocket

me too bro I take a wrench in my pocket and stop and adjust if needed
cheers
__________________
Life is perfect when you Ride your bike on back roads
Reply With Quote
  #7  
Old 08-24-2007, 08:24 PM
saab2000's Avatar
saab2000 saab2000 is offline
Senior Member
 
Join Date: Dec 2003
Posts: 10,538
All the way back.

Must admit I haven't ridden the bike yet.
Reply With Quote
  #8  
Old 08-24-2007, 08:26 PM
ols ols is offline
Senior Member
 
Join Date: Apr 2004
Posts: 160
I used wobblenaught with good results (ymmv)
Reply With Quote
  #9  
Old 08-24-2007, 08:36 PM
DarrenCT's Avatar
DarrenCT DarrenCT is offline
ba-da-bing
 
Join Date: Nov 2005
Location: lalalala
Posts: 3,821
no method on any of my bikes. i just figure it out in the first few miles
Reply With Quote
  #10  
Old 08-24-2007, 09:45 PM
CarlosContreros CarlosContreros is offline
Senior Member
 
Join Date: Feb 2004
Location: Central Florida/all of USA!
Posts: 422
Thumbs up

Quote:
Originally Posted by regularguy412
-- but I had long battled recrurring saddle sores on my short-leg side.
Mike in AR
I have the same problem with the "short-leg" saddle sores....that's been the impetus to take a good look at my position.

Thanks for the feedback Mike...
to the rest of ya?

........HOW 'BOUT THOSE GATORS!!!
Reply With Quote
  #11  
Old 08-24-2007, 09:46 PM
toaster toaster is offline
Senior Member
 
Join Date: Sep 2004
Posts: 1,823
I set saddle fore-aft position by seeing if I can pedal on flat terrain pushing a fairly big gear with my hands in the drops and then letting go of the bars and seeing if I can balance there with a bit of movement but not falling forward.

This tells me if the saddle is back far enough to allow me to cantilever my torso without having to use my arms or core muscles to hold me up.

If I'm falling forward during this fitting procedure then I'll will be using muscles that will use extra energy when pedaling at high power efforts and tells me to move saddle for more set back.

Knee over pedal is only a starting point. Most times this results in a position that will have you pulling on the handlebar instead of pushing on the pedals when you try to hammer hard.
Reply With Quote
  #12  
Old 08-24-2007, 10:08 PM
don compton don compton is offline
Senior Member
 
Join Date: Dec 2003
Posts: 832
fore-aft

i had a meeting with dr. max testa and for -aft position is not simple. two people with the same leg length can have signifigantly different femur lengths. optimal seat positins would vary greatly. i have short femurs and he moved my saddle forward and higher and i noticed an imediate improvement.
just a thought.
Reply With Quote
  #13  
Old 08-24-2007, 11:15 PM
Grant McLean's Avatar
Grant McLean Grant McLean is offline
Senior Member
 
Join Date: Nov 2004
Location: Toronto
Posts: 7,471
Quote:
Originally Posted by CarlosContreros
Just wondering?

Pruitt method...drop a line from front of kneecap should reach to front of crankarm?

...

Serotta method...tibial tuberosity line should bisect center pedal axle?

thanks!

These two are supposed to be the same, the kneecap is just easier to find on
most people, so that's the quicker method.

Setback is complex. It changes your center of gravity, and can mess up
the way the bike handles. Handlebar height is a factor, since the hip angle
is part of the whole package.

Where are your cleats set? You can help compensate for a leg length issue
by moving your foot forward on the pedal of the longer leg.

If you have issues like saddle sores or other alignment issues, see a pro, not one
who plays one on the internet. Seeing is believing.

-g
Reply With Quote
  #14  
Old 08-25-2007, 10:38 AM
John H. John H. is offline
Senior Member
 
Join Date: Mar 2004
Posts: 4,641
Setback

Quote:
Originally Posted by saab2000
There's a method? Put it to the stops (as far back as possible) and if need be move it forward. You'll find where it needs to be.
And tap it with a rubber mallet to make sure it is all the way back?
Reply With Quote
  #15  
Old 08-25-2007, 03:42 PM
Bart001's Avatar
Bart001 Bart001 is offline
2001 Concours ti
 
Join Date: May 2007
Location: West of Boston, Mass.
Posts: 166
I'm trying the . . .

"TiDesigns tells me where to put it" method.
Reply With Quote
Reply


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

Forum Jump


All times are GMT -5. The time now is 11:42 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.