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 10-06-09, 04:24 PM   #1
GeorgeWerr
Senior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
rear wheel

Hi Everone,

I have a raleigh technium from the late 80's that I'm trying to make into a commuter it has a suntour RD and DT shifters I went to the LBS for a new wheel. They sold me a sunrims m13II and a shimano 6 speed cassette. I can use the shimano with the the shifters in friction mode. My problem is the rim keeps slipping on the frame and twist until it hits the brakes. The QR is as tight as I can clamp it but it still slips. everything looks right to my nonprofessional eyes. any ideas ?

George
GeorgeWerr is offline   Reply With Quote
Old 10-06-09, 06:29 PM   #2
sooprvylyn
I suck, but you're worse
 
Join Date: Jun 2005
Location: LA
Bikes: Motobecane Fantom Uno-Got rid of the rest when I moved to LA:(
Posts: 672
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If the QR is tight and you are still getting slippage your axle is probably too long. Take our skewer(QR) out and put the back wheel in the dropouts of the frame. You shouldn't be able to see more than about 0.5 mm of axle on the outside edge of the dropout. if you see more than this then your QR is not tightening(not very tight) against the dropouts but rather tightening on the axle.
A quick fix for this is to get some 1 mm wide toothed washers that will fit around the axle. Basically you want to take up about 1 mm of space on each side of the axle so your QR can engage the dropouts properly.

The other option is that your skewar is not too long and the threading stops too short on the skewer causing the QR to not get tight enough.
sooprvylyn is offline   Reply With Quote
Old 10-06-09, 06:34 PM   #3
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,123
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Could be the axle is too long as already mentioned. Could also be the type of skewer you're using. If they're the external cam type, they don't have enough clamping power for horizontal dropouts (they're intended for vertical dropouts, which most bikes have nowadays). If this is the case, get a Shimano or Campy skewer, they still use the internal cam design, and will give you plenty of clamping power to keep the wheel from shifting in the dropouts.
well biked is offline   Reply With Quote
Old 10-07-09, 08:36 AM   #4
GeorgeWerr
Senior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the replies, It appears that my axle is the right size but the QR is the external type. I wasnt sure what well biked was trying to explan then I when to sheldons site about QR's and read all he had to say. this all makes sense now and I will go buy some internal QR after work.

Thank You for your help
GeorgeWerr is offline   Reply With Quote
Old 10-08-09, 06:14 AM   #5
GeorgeWerr
Senior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks again,

I picked up a new QR yesterday after work and it did the trick

George
GeorgeWerr is offline   Reply With Quote
Old 10-08-09, 07:04 AM   #6
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)
It's unfortunate that everyone besides shimano uses the external design.
operator is offline   Reply With Quote
Old 10-08-09, 07:31 AM   #7
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,123
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Quote:
Originally Posted by operator View Post
It's unfortunate that everyone besides shimano uses the external design.
I have some '09 Campy Centaur hubs, they have internal cam skewers. Shimanos are more common, of course.
well biked is offline   Reply With Quote
Old 10-08-09, 07:38 AM   #8
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 29,121
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 180 Post(s)
Quote:
Originally Posted by operator View Post
It's unfortunate that everyone besides shimano uses the external design.
Unless Campy has changed their qr skewers design lately, they do too.
HillRider is offline   Reply With Quote
Old 10-08-09, 08:19 AM   #9
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,123
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Quote:
Originally Posted by HillRider View Post
Unless Campy has changed their qr skewers design lately, they do too.
The ones on my 09 Centaur hubs are the same design (shape, etc.) as the ones on even the new higher end Campy stuff. They do look different, but they still have the internal cam feature that gives such good clamping force. For practical purposes, if you're looking to pick up an aftermarket internal cam skewer, Shimano is what you'll find at most bike shops. Or if you can find a bin of old skewers to look through (Suntour, Shimano, Joytech, Suzue, etc etc). Most of the old ones have decent clamping force.

Last edited by well biked; 10-08-09 at 10:10 AM.
well biked 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 04:56 PM.