Go Back  Bike Forums > Bike Forums > Fitting Your Bike
Reload this Page >

How do these geometry figures affect riding?

Search
Notices
Fitting Your Bike Are you confused about how you should fit a bike to your particular body dimensions? Have you been reading, found the terms Merxx or French Fit, and don’t know what you need? Every style of riding is different- in how you fit the bike to you, and the sizing of the bike itself. It’s more than just measuring your height, reach and inseam. With the help of Bike Fitting, you’ll be able to find the right fit for your frame size, style of riding, and your particular dimensions. Here ya’ go…..the location for everything fit related.

How do these geometry figures affect riding?

Thread Tools
 
Search this Thread
 
Old 05-31-15, 06:56 PM
  #1  
vol
Senior Member
Thread Starter
 
Join Date: Jul 2010
Posts: 3,797
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 18 Times in 12 Posts
How do these geometry figures affect riding?

How do front center, chain stay length, head tube angle affect riding?
vol is offline  
Old 06-01-15, 05:19 AM
  #2  
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 16,879

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 1858 Post(s)
Liked 664 Times in 506 Posts
Front center and chainstay length set your fore-aft weight distribution. If the proportions are right, you get better handling and possibly stability.

Head tube angle affects the tendency of the fork to flop (called flop), and combined with fork offset and wheel diameter determines trail, which is really important in designing how your frame will steer.

FC and CS have something to do with fit, and head angle less so. But, a more laid-back head tube can result in longer FC, so it's not like there's no connection to fit.
Road Fan is online now  
Old 06-01-15, 10:03 PM
  #3  
vol
Senior Member
Thread Starter
 
Join Date: Jul 2010
Posts: 3,797
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 18 Times in 12 Posts
Thanks, Road Fan.
vol is offline  
Old 06-02-15, 03:28 PM
  #4  
Senior Member
 
Join Date: Feb 2001
Location: England
Posts: 12,948
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 7 Times in 7 Posts
A short Front Centre creates toe-clip overlap, which is undesirable for low-speed urban riding or loaded riding.
Head-tube angle affects the sensitivity of the bike to changes in fork rake.
CS length affects rear-triangle siffness, pedal interference, as well as fore-aft weight distribution.
MichaelW is offline  
Old 06-02-15, 11:41 PM
  #5  
vol
Senior Member
Thread Starter
 
Join Date: Jul 2010
Posts: 3,797
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 18 Times in 12 Posts
Would it be right to say that in general, shorter front center, greater seat (not head) tube angle, and shorter wheel base are more for speedy rides such as racing, and the opposite are more for leisure/urban/touring/slow riding?
vol is offline  
Old 06-03-15, 04:51 AM
  #6  
Senior Member
 
Join Date: Aug 2014
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
https://calfeedesign.com/tech-papers/...bike-handling/
Igualmente is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wardie
Classic & Vintage
3
11-23-13 03:21 PM
dleccord
Road Cycling
11
09-09-12 09:37 AM
diff
Framebuilders
5
09-05-12 08:41 AM
illdthedj
Singlespeed & Fixed Gear
12
11-17-10 09:32 PM
BikesAreCool123
Road Cycling
5
08-28-10 01:36 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



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

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