Go Back  Bike Forums > Bike Forums > Hybrid Bicycles
Reload this Page >

Small Platform Pedal Mystery

Notices
Hybrid Bicycles Where else would you go to discuss these fun, versatile bikes?

Small Platform Pedal Mystery

Old 06-25-18, 12:00 PM
  #1  
Tragically Ignorant
Thread Starter
 
livedarklions's Avatar
 
Join Date: Jun 2018
Location: New England
Posts: 15,612

Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM

Liked 9,099 Times in 5,054 Posts
Small Platform Pedal Mystery

Swapped out the junk platform pedals that came with my FX 3 for Raceface Chesters, and I just have one question:

The junk pedals were thicker than the Chesters, but after the Chesters were put on, I found I needed to raise my seat a fraction of an inch. There was no question that this small adjustment gave me a better ride, and that it put my knees roughly where they were with the old pedals at the lower seat position. The Chesters are definitely wider and longer than the junkers, but I would have thought being thinner would have necessitated putting the seat down a bit as the bottom of my pedaling stroke is a little lower.

So, what am I missing here? Why did the seat need to go up?

Last edited by livedarklions; 06-25-18 at 12:01 PM. Reason: typo
livedarklions is offline  
Old 06-25-18, 04:55 PM
  #2  
Senior Member
 
hokiefyd's Avatar
 
Join Date: Feb 2017
Location: Northern Shenandoah Valley
Posts: 4,151

Bikes: More bikes than riders

Liked 777 Times in 579 Posts
Originally Posted by livedarklions
Why did the seat need to go up?
If I'm following you correctly, you're right in that it shouldn't have needed to go up. If you measure from your saddle to the top of the platform of the pedal in its lowest position, it should have been just a touch lower if the pedal is indeed thinner, meaning that you'd need to lower the saddle, at least in theory. You said you "needed to" raise it...why? Did you feel that your leg was no longer extending enough? It must be some other variable. Maybe your foot is at a different angle with the Chesters, making you feel a little more crowded on the pedal (and thus felt that you needed to raise the saddle).
hokiefyd is offline  
Old 06-26-18, 10:17 AM
  #3  
Tragically Ignorant
Thread Starter
 
livedarklions's Avatar
 
Join Date: Jun 2018
Location: New England
Posts: 15,612

Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM

Liked 9,099 Times in 5,054 Posts
[QUOTE=hokiefyd;20412340You said you "needed to" raise it...why? Did you feel that your leg was no longer extending enough? It must be some other variable. Maybe your foot is at a different angle with the Chesters, making you feel a little more crowded on the pedal (and thus felt that you needed to raise the saddle).[/QUOTE]


Exactly right--I felt I had an extra fraction of an inch extension possible (obviously a difference greater than the difference in pedal thickness), and I was no longer in the "sweet spot" where I was getting the maximum comfortable stroke while keeping my knees slightly bent.

It probably does have to do with the angle of the foot on the pedal, and my thinking is that the small garbage pedal must have forced my foot into a position that made the stroke just a little bit shorter. I've now gone about 200 miles on the new pedals, and my calves seem marginally "looser" after a long ride. Makes me think the smaller pedal was making me sort of "sit tiptoe" on the pedals.
livedarklions is offline  
Old 06-27-18, 03:13 AM
  #4  
Senior Member
 
Join Date: Apr 2018
Location: Saulkrasti, Latvia
Posts: 898

Bikes: Focus Crater Lake

Liked 337 Times in 204 Posts
Sounds like the original junk pedals made you place your foot a bit more forward on the pedal, so you push not with the ball of your foot but somewhere closer to the middle of your foot instead. The new pedals then probably provide comfortable placement of the ball of your foot on the pedal, thus your foot adds to the lever arm. This would also explain feeling a little better after a ride, since this way you need to exert somewhat less force to achieve the same torque.
subgrade is offline  
Old 06-27-18, 12:10 PM
  #5  
Tragically Ignorant
Thread Starter
 
livedarklions's Avatar
 
Join Date: Jun 2018
Location: New England
Posts: 15,612

Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM

Liked 9,099 Times in 5,054 Posts
Originally Posted by subgrade
Sounds like the original junk pedals made you place your foot a bit more forward on the pedal, so you push not with the ball of your foot but somewhere closer to the middle of your foot instead. The new pedals then probably provide comfortable placement of the ball of your foot on the pedal, thus your foot adds to the lever arm. This would also explain feeling a little better after a ride, since this way you need to exert somewhat less force to achieve the same torque.

I think you got it! Essentially, the better foot position makes the distance between my knees and the bottom of my foot longer.

Problem with platform pedals is I'll never know how I had my feet placed on the old ones unless I put them back on, and I'm not that curious!

One of those things that doesn't feel like a problem until it's gone. For reasons too boring to recount, I can't use anything but platforms, and this is my first pair of big ones. Definitely a noticeable improvement.
livedarklions is offline  
Old 06-27-18, 02:39 PM
  #6  
Senior Member
 
mwl001's Avatar
 
Join Date: Jun 2014
Location: Scottsdale, AZ
Posts: 133

Bikes: Giant Roam 2

Likes: 0
Liked 2 Times in 2 Posts
I think it's wise to compare apples to apples when you can - wear the two shoes you're considering on opposite feet and walk in them, put one new pedal on and ride to see the difference... Just a thought for future purchases or for others showing up later.
mwl001 is offline  
Old 06-29-18, 09:29 AM
  #7  
Tragically Ignorant
Thread Starter
 
livedarklions's Avatar
 
Join Date: Jun 2018
Location: New England
Posts: 15,612

Bikes: Serotta Atlanta; 1994 Specialized Allez Pro; Giant OCR A1; SOMA Double Cross Disc; 2022 Allez Elite mit der SRAM

Liked 9,099 Times in 5,054 Posts
Originally Posted by mwl001
I think it's wise to compare apples to apples when you can - wear the two shoes you're considering on opposite feet and walk in them, put one new pedal on and ride to see the difference... Just a thought for future purchases or for others showing up later.
Not to be mean, but that's terrible advice. Mismatched foot anything is going to feel awful, and the best I can hope for is that the mismatch won't actually harm my feet. Why would you test anything by operating it under conditions it was never designed for and that would never occur other than dusring the test?

Also, there's absolutely no question that the Chesters work much better for me, it was really a counter-intuitive geometry quirk that puzzled me.
livedarklions is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
PistolSlap
Bicycle Mechanics
20
03-11-15 12:27 PM
trek330
Road Cycling
5
08-03-12 09:58 AM
Wolfvegas
General Cycling Discussion
19
04-22-12 11:54 AM
Carbon Unit
Road Cycling
11
05-02-11 06:46 AM
Hammerknocker
Road Cycling
12
03-22-11 01:07 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Your Privacy Choices -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.