Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

Overtight bolt

Reply

Old 12-05-03, 01:22 AM
  #1  
DANTE
Member
Thread Starter
 
Join Date: Mar 2003
Posts: 39
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Overtight bolt

Hi to all.
Yesterday I was tightening the handlebar clamp on my Tassajara and I tightened the vertical bolt too much. I undid it and screwed it in again but now it will only tighten up to a certain limit and then it willgo soft again. The two lateral bolts are ok, and I tried riding the bike without the top bolt and the bike felt ok.
What should I do leave it as it is with the bolt on as tight as it can before it goes soft or do I have to change something expensive??
Thanks for your help.
DANTE is offline  
Reply With Quote
Old 12-05-03, 01:39 AM
  #2  
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Posts: 18,601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 130 Post(s)
are you talking about the stem faceplate bolts??
roadfix is offline  
Reply With Quote
Old 12-05-03, 02:26 AM
  #3  
F1_Fan
Senior Member
 
Join Date: May 2003
Posts: 1,119
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by DANTE
What should I do leave it as it is with the bolt on as tight as it can before it goes soft or do I have to change something expensive??
Thanks for your help.
Oh... my...

Go to a bike shop and let the pros look at the stem. Now.

I can't believe someone would willingly ride a bike with one handlebar bolt out. That's crazy. It sounds like you stripped the threads in the stem. A bike shop will likely suggest that you replace the stem. It's not a hugely expensive repair.
F1_Fan is offline  
Reply With Quote
Old 12-05-03, 02:56 AM
  #4  
DANTE
Member
Thread Starter
 
Join Date: Mar 2003
Posts: 39
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The bolt I am referring to is the only only one which can be seen when you look at the handlebars from above.
Sorry but I do not know the technical term.

Thanks for your advice
DANTE is offline  
Reply With Quote
Old 12-05-03, 08:53 AM
  #5  
a2psyklnut
Senior Member
 
Join Date: Mar 2000
Location: Parrish, FL
Posts: 7,964

Bikes: Lots

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like the top-cap. This is even cheaper to repair as you simply need a new star-nut installed.

However, if the pinch bolts on the stem are tight, the tension on the top-cap bolt isn't significantly important.

It used to tighten up the headset by compressing the stem/spacers/bearings then you tighten up the pinch bolts on the stem to "lock down" the assembly.

So, after it's all tight, you can back off 1/4 turn on the top cap and it's ALL GOOD!

L8R
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger
a2psyklnut is offline  
Reply With Quote
Old 12-09-03, 02:09 AM
  #6  
DANTE
Member
Thread Starter
 
Join Date: Mar 2003
Posts: 39
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for you help guys
DANTE is offline  
Reply With Quote
Old 12-09-03, 05:52 PM
  #7  
Chi
Rides with Cows
 
Chi's Avatar
 
Join Date: Apr 2003
Location: Fixing a flat
Posts: 1,232

Bikes: Trek 7000

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't the bearings on your headset start to bind after you tighten the cap bolt too much?
__________________
Chi is offline  
Reply With Quote
Old 12-10-03, 07:46 AM
  #8  
DANTE
Member
Thread Starter
 
Join Date: Mar 2003
Posts: 39
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No, even after I tightened the bolt so much that I damaged the thread, everything turned smoothly.

Although the top cap bolt is damaged it can still be tightened to a certain degree. I rode the bike and noticed nothing unusual.

Thanks again
DANTE is offline  
Reply With Quote
Old 12-10-03, 09:19 AM
  #9  
Jim311
Senior Member
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It's not worth killing yourself over a 40 dollar part

Jim311 is offline  
Reply With Quote

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