Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Fork flex when closing wheel

Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Fork flex when closing wheel

Old 09-10-18, 12:45 AM
  #1  
Teamprovicycle
Banned
Thread Starter
 
Join Date: Mar 2018
Location: Providence
Posts: 733

Bikes: Specialized tarmac sl2 giant tcx zero

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 319 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
Fork flex when closing wheel

Heres a little head scratcher .....

How much should a carbon fork or any for flex side to side when closing up a wheel .do you have a carbon fork or others that move a bit when puttin your wheel on **********???

One of my forks seems to move a bit more than others i have . would suck for it to fail on ride , let me know your thoughts .
Teamprovicycle is offline  
Old 09-10-18, 06:39 AM
  #2  
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Posts: 22,194

Bikes: Several, mostly not name brands.

Mentioned: 130 Post(s)
Tagged: 0 Thread(s)
Quoted: 2430 Post(s)
Liked 938 Times in 602 Posts
You're referring to flex when you close the quick release?

That suggests to me that the axle spacing is too narrow. Put a washer under the locknut on each side to make the axle spacing match the fork end spacing.
JohnDThompson is offline  
Old 09-10-18, 07:01 AM
  #3  
DrIsotope
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 8,553

Bikes: Nekobasu, Pandicorn, Lakitu

Mentioned: 119 Post(s)
Tagged: 0 Thread(s)
Quoted: 4898 Post(s)
Liked 1,686 Times in 942 Posts
On my Cervelo, I would guess that when inserting the wheel into the fork, there's probably ~5mm of space between dropouts and hub that the fork "flexes" to take up when tightened down.

This seems to be fairly common with carbon forks.
__________________
DrIsotope is offline  
Old 09-10-18, 07:15 AM
  #4  
mstateglfr 
Sunshine
 
mstateglfr's Avatar
 
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 11,958

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Mentioned: 97 Post(s)
Tagged: 0 Thread(s)
Quoted: 4858 Post(s)
Liked 2,081 Times in 1,243 Posts
The fork is too wide(over 100mm, for example) or the hub is too narrow(under 100mm, for example).
Its really common for them to fit perfectly and its really common for there to be a couple mm of space. Every time I have seen there be too much space, its because the fork is wider than 100mm. Not at all a big deal- not even worth thinking twice about.
mstateglfr is offline  
Old 09-10-18, 09:00 PM
  #5  
Teamprovicycle
Banned
Thread Starter
 
Join Date: Mar 2018
Location: Providence
Posts: 733

Bikes: Specialized tarmac sl2 giant tcx zero

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 319 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
I use mavic askium wheels for training on a madone 7.
Teamprovicycle is offline  
Old 09-10-18, 10:02 PM
  #6  
dahoneezz
Senior Member
 
Join Date: Aug 2016
Posts: 336
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 162 Post(s)
Liked 9 Times in 8 Posts
https://www.trekchicago.com/how-to/c...care-pg193.htm

Says no more than 2mm. Dunno whether the link is official Trek or not.
dahoneezz is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BTG30
Bicycle Mechanics
8
06-28-18 07:53 AM
SingleSpeeDemon
General Cycling Discussion
12
10-17-16 10:39 AM
Banzai
Bicycle Mechanics
13
06-20-13 06:57 PM
antokelly
Touring
25
08-24-11 11:38 AM
amor fati
Singlespeed & Fixed Gear
0
12-31-10 08:53 AM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.