Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-30-10, 08:49 PM   #1
Sincitycycler
Senior Member
Thread Starter
 
Sincitycycler's Avatar
 
Join Date: Mar 2005
Location: "Gosh honey, you pass more like Tony Rominger..."
Bikes: 2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
Posts: 3,219
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why do my single speed chain ring bolts spin?

I have some cheaper Sugino track bolts and a couple of them spin (they don't tighten) but they aren't stripped.

What causes this? Would the models with the knurled bottoms solve my problem?
__________________
"How did all those 'Keep Off the Grass' signs get there?"
Sincitycycler is offline   Reply With Quote
Old 07-30-10, 08:51 PM   #2
Bat56
Senior Member
 
Bat56's Avatar
 
Join Date: May 2010
Location: St.Paul, MN
Bikes:
Posts: 1,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
The nuts are too big? Common problem.


and by big I mean long.
Bat56 is offline   Reply With Quote
Old 07-30-10, 08:53 PM   #3
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Bikes:
Posts: 6,059
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
Quote:
Originally Posted by Sincitycycler View Post
I have some cheaper Sugino track bolts and a couple of them spin (they don't tighten) but they aren't stripped.

What causes this? Would the models with the knurled bottoms solve my problem?
You sure the nuts aren't too long? If they stick through the spider and chainring, you won't get any clamp force.
__________________
Gearhubs demystified and other cool stuff.


WANTED: Dead or broken gearhubs for failure analysis.

Like the shop
Dan Burkhart is offline   Reply With Quote
Old 07-30-10, 09:02 PM   #4
Sincitycycler
Senior Member
Thread Starter
 
Sincitycycler's Avatar
 
Join Date: Mar 2005
Location: "Gosh honey, you pass more like Tony Rominger..."
Bikes: 2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
Posts: 3,219
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Aren't all ss chainring bolts standard length? Only two of the bolts spin, the other three are OK
__________________
"How did all those 'Keep Off the Grass' signs get there?"
Sincitycycler is offline   Reply With Quote
Old 07-30-10, 09:06 PM   #5
Bat56
Senior Member
 
Bat56's Avatar
 
Join Date: May 2010
Location: St.Paul, MN
Bikes:
Posts: 1,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
is the chainring loose on the spinners?

do you use a screw driver on the nut side?
Bat56 is offline   Reply With Quote
Old 07-30-10, 09:21 PM   #6
Sincitycycler
Senior Member
Thread Starter
 
Sincitycycler's Avatar
 
Join Date: Mar 2005
Location: "Gosh honey, you pass more like Tony Rominger..."
Bikes: 2005 Scott CR1 Pro - 1992 Panasonix Fixed Conversion 60tx20t
Posts: 3,219
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)


This is the new Origin 8 144 bcd chainring I was installing and the bolt circle holes seem kind of deep-that maybe the problem, but that would put them out of business if Origin make faulty chainrings?
__________________
"How did all those 'Keep Off the Grass' signs get there?"
Sincitycycler is offline   Reply With Quote
Old 07-30-10, 09:23 PM   #7
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Sincitycycler View Post


This is the new Origin 8 144 bcd chainring I was installing and the bolt circle holes seem kind of deep-that maybe the problem, but that would put them out of business if Origin make faulty chainrings?
They're not faulty.

Just reverse the ring so that the recess is on the 'inside'. If the chainring bolts/nuts are still too long just marginally, you can easily file down the nut part so that it will clear, and tighten down.
operator is offline   Reply With Quote
Old 07-31-10, 07:38 PM   #8
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 8,066
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Quote:
Originally Posted by Sincitycycler View Post
I have some cheaper Sugino track bolts and a couple of them spin (they don't tighten) but they aren't stripped.

What causes this? Would the models with the knurled bottoms solve my problem?
A lot of times the threads develop more friction than the hole they're sitting in, so turning the bolt with a hex wrench just spins everything. You need a spanner to hold on to the nut, like this one from Park: http://www.biketoolsetc.com/index.cg...tem_id=PA-CNW2

__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 07:30 AM.