Go Back  Bike Forums > Bike Forums > Singlespeed & Fixed Gear
Reload this Page >

SS Build - flip flop hub question

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

SS Build - flip flop hub question

Old 01-02-12, 07:32 PM
  #26  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Six jours View Post
That still doesn't answer the question. If the threads are adequate for the torque of a fixed cog, why are they not adequate for the torque of a freewheel?
um, a fixed side is designed for a fixed cog and has the amount of threading needed to fully screw on, It does Not have enough for a freewheel to fully screw on and will only screw on about half way with the rest of the freewheel hanging over the lockring threading. This will be flexy and is bad.

I have seen someone do this and it stripped and messed up the fixed side of the hub. Put a freewheel on the freewheel side.
mikeetow is offline  
Old 01-02-12, 07:59 PM
  #27  
Six jours
Senior Member
 
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
If you look at six and seven speed freewheels you'll note that they are only supported by about half their width too.

Moreover, I have seen fixed cogs strip threads designed for fixed cogs. I have also seen freewheels strip threads designed for freewheels. So the fact that threads sometimes strip isn't a very good argument.

Regarding "flex", I'm assuming you know this because you have measured it or have access to the research of someone else who did. I'm very interested in those measurements and hope you will publish them here.

Personally, I have "researched" the issue to my own satisfaction through extensive use of freewheels on fixed threads. I have never had a problem.
Six jours is offline  
Old 01-02-12, 08:20 PM
  #28  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,947

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by mikeetow View Post
um, a fixed side is designed for a fixed cog and has the amount of threading needed to fully screw on, It does Not have enough for a freewheel to fully screw on and will only screw on about half way with the rest of the freewheel hanging over the lockring threading. This will be flexy and is bad.
um, you don't really know what you're talking about.
Scrodzilla is offline  
Old 01-02-12, 08:30 PM
  #29  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Scrodzilla View Post
um, you don't really know what you're talking about.
Well if you want to put freewheels on the wrong side on the hub, I won't argue

I just won't go to any shop you work at

Last edited by mikeetow; 01-02-12 at 08:39 PM.
mikeetow is offline  
Old 01-02-12, 08:38 PM
  #30  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Six jours View Post
If you look at six and seven speed freewheels you'll note that they are only supported by about half their width too.

Moreover, I have seen fixed cogs strip threads designed for fixed cogs. I have also seen freewheels strip threads designed for freewheels. So the fact that threads sometimes strip isn't a very good argument.

Regarding "flex", I'm assuming you know this because you have measured it or have access to the research of someone else who did. I'm very interested in those measurements and hope you will publish them here.

Personally, I have "researched" the issue to my own satisfaction through extensive use of freewheels on fixed threads. I have never had a problem.
Neat, the Shimano freewheel I took off a wheel was only able to screw half way on to the fixed side, and while test riding it, I can tell it was flexing and it skipped under load, being it was not able to fully thread on. Maybe I'm talking about something else then you, bit that was my finding on a freewheel on a fixed side threading.
mikeetow is offline  
Old 01-02-12, 08:39 PM
  #31  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,947

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by mikeetow View Post
Well if you want to put freewheels on the wrong side on the hub, I won't argue
Unless you've actually done it and had it fail, you shouldn't be talking at all. I know plenty of people who have used freewheels on fixed hubs with zero problems.
Scrodzilla is offline  
Old 01-02-12, 08:45 PM
  #32  
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,258

Bikes: Bianchi, Miyata, Dahon, Rossin

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time in 1 Post
scrod is correct.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Old 01-02-12, 08:46 PM
  #33  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Ok, you got it dood.
mikeetow is offline  
Old 01-02-12, 08:51 PM
  #34  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,947

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I know I do.
Scrodzilla is offline  
Old 01-02-12, 08:55 PM
  #35  
TejanoTrackie 
Veteran Racer
 
TejanoTrackie's Avatar
 
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,146

Bikes: 29 frames + 72 wheels

Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 663 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Watchubinsmokinmikeetow ?
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv View Post
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Old 01-02-12, 08:55 PM
  #36  
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,258

Bikes: Bianchi, Miyata, Dahon, Rossin

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time in 1 Post
why would a freewheel be more stressful to the threads compared to a fixed cog?
I've never heard of anyone stripping threads with a freewheel.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Old 01-02-12, 08:59 PM
  #37  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by TejanoTrackie View Post
Watchubinsmokinmikeetow ?
Some bad stuff I guess :/
mikeetow is offline  
Old 01-02-12, 09:05 PM
  #38  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,947

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by AEO View Post
why would a freewheel be more stressful to the threads compared to a fixed cog?
It wouldn't be.

Originally Posted by AEO View Post
I've never heard of anyone stripping threads with a freewheel.
And you won't.
Scrodzilla is offline  
Old 01-02-12, 09:08 PM
  #39  
mikeetow
Senior Member
 
mikeetow's Avatar
 
Join Date: Jul 2009
Location: Hermosa Beach, CA
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
All hail bike king.
mikeetow is offline  
Old 01-02-12, 09:11 PM
  #40  
Scrodzilla
See you in Hell.
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: South of Heaven
Posts: 25,947

Bikes: EAI Bare Knuckle

Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
No one is trying to be "bike king", you're just wrong. It's okay dude, really.
Scrodzilla is offline  
Old 01-03-12, 08:13 PM
  #41  
Six jours
Senior Member
 
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by AEO View Post
why would a freewheel be more stressful to the threads compared to a fixed cog?
I've never heard of anyone stripping threads with a freewheel.
It isn't. Mike is arguing (I think) that the typical fixed gear threads don't extend far enough out to adequately support the typical SS freewheel. I can understand how someone could be concerned about it, but the reality is that it works just fine.

FWIW, I have seen several instances of stripped freewheel threads (all of them with multispeed freewheels mounted on hubs designed for them) but in all those cases there was some other issue - either a really old hub, a thread incompatibility, or incorrect installation.
Six jours is offline  
Old 01-04-12, 04:50 PM
  #42  
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Posts: 20,405

Bikes: Several, mostly not name brands.

Mentioned: 110 Post(s)
Tagged: 0 Thread(s)
Quoted: 1699 Post(s)
Liked 63 Times in 43 Posts
Originally Posted by Six jours View Post
That still doesn't answer the question. If the threads are adequate for the torque of a fixed cog, why are they not adequate for the torque of a freewheel?
Originally Posted by Six jours View Post
It takes me 10-15 seconds to flip a wheel, which is consistent with the times posted by the old racers. I don't know what the world record for brake pad adjustment is, but I'm sure it takes me at least a minute or two, not counting time to fish around for the tool.
You don't need to perform a full adjustment, just align the pads so they meet the rim properly when you apply the brakes. It shouldn't take more than a few seconds.
JohnDThompson is offline  
Old 01-04-12, 06:05 PM
  #43  
dookski
meat popsicle
 
dookski's Avatar
 
Join Date: Sep 2004
Location: Brooklyn, NY
Posts: 166

Bikes: Gitane, Frienze, Kilo, Masi, Fuji, Playdate

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
My lady has a freewheel on fixed threading, she does fine.
Generally anytime someone says you can't do something to a bicycle, or anything else, they are wrong.
dookski is offline  
Old 01-04-12, 06:30 PM
  #44  
MattWithTwoTs
I like to fall.
 
MattWithTwoTs's Avatar
 
Join Date: Jun 2009
Location: Virginia Beach, VA
Posts: 79
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Scrodzilla View Post
I know I do.
HAHAHAHA I love it.

I can't imagine any normal cyclist hammering that hard to mess up threads using a freewheel. Unless you mount an internal combustion engine.
MattWithTwoTs is offline  
Old 01-04-12, 07:40 PM
  #45  
Six jours
Senior Member
 
Join Date: Mar 2007
Posts: 6,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by JohnDThompson View Post
You don't need to perform a full adjustment, just align the pads so they meet the rim properly when you apply the brakes. It shouldn't take more than a few seconds.
Well, I can't do it that fast. Maybe you can put up a video of you doing it so that I can see where I'm going wrong.
Six jours is offline  
Old 01-04-12, 07:57 PM
  #46  
TejanoTrackie 
Veteran Racer
 
TejanoTrackie's Avatar
 
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,146

Bikes: 29 frames + 72 wheels

Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 663 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Six jours View Post
Well, I can't do it that fast. Maybe you can put up a video of you doing it so that I can see where I'm going wrong.
I agree entirely that (semi) horizontal dropouts are preferable for a single speed application with a rear brake. In fact, both of my single speeds are set up that way and all my track frames are fixed w/o a rear brake. Since a single speed can coast through turns, a high BB is not needed, and a road style frame works well. I certainly would not want to have to constantly readjust the rear brake pad position every time I flipped the wheel to change gearing. Also, it can take longer if the pads include toe-in adjustment, which always seems to change when the pads are readjusted.
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv View Post
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
puppypilgrim
Folding Bikes
0
11-15-10 11:50 AM
BigPolishJimmy
Clydesdales/Athenas (200+ lb / 91+ kg)
11
08-13-10 08:26 AM
DesnaePhoto
"The 33"-Road Bike Racing
9
08-17-09 06:58 AM
mike868y
Northeast
0
03-20-09 05:56 PM
truckin
"The 33"-Road Bike Racing
12
01-28-09 11:39 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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.