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 01-18-06, 10:00 AM   #1
bigbang
Junior Member
Thread Starter
 
Join Date: Jul 2003
Location: Yarrawonga,Australia
Bikes:
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Front Wheel Locking Tabs- What do they do

We had a serious accident at work tonight when an operator was riding an old bike when the front wheel came off. Suspected broken elbow and wrist.

The bike has wheel nuts and not quick release levers.

The bike was not fitted with the locking tabs on the front wheel.

Question: What do the locking tabs do?
Do they prevent the wheel nuts coming lose or prevent the wheel falling out of the forks if the nuts do become lose?
bigbang is offline   Reply With Quote
Old 01-18-06, 10:12 AM   #2
juicemouse
Senior Member
 
juicemouse's Avatar
 
Join Date: Mar 2005
Location: Happy Valley
Bikes:
Posts: 813
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The tabs you're talking about on the dropouts of the fork are meant to decrease the likelihood of the front wheel coming out if the axle nuts or quick release lever are loose. They do not, in any way, prevent the axle nuts or quick release lever from loosening. It is the operator's responsibility to make sure the axle nuts or quick release lever are as tight as they should be before every ride.
__________________
It is my belief that every person in this world has something to teach, and everything to learn.

In memory of Jim Price (aka. sydney) ...
juicemouse is offline   Reply With Quote
Old 01-18-06, 11:35 AM   #3
Da Tinker
Can't ride enough!
 
Da Tinker's Avatar
 
Join Date: Aug 2002
Location: south Louisiana
Bikes: IFab Crown Jewel, Giant Defy, Hardtail MTB, Fuji finest, Bianchi FG conversion
Posts: 1,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You may also hear such tabs referred to as 'lawyer lips', which is a concise statement of their origin & usefullness.

The tabs help protect the manufacturer from liability when a rider does not maintain/check his equipment. The also serve to reduce the effectiveness of a front QR.
Da Tinker is offline   Reply With Quote
Old 01-18-06, 11:49 AM   #4
Doctor Who
Lotion/Basket/Hose
 
Doctor Who's Avatar
 
Join Date: Apr 2004
Location: Chicago
Bikes: 1992 Schwinn Paramount
Posts: 1,368
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
And most cyclists will file 'em off.

I hate them.
Doctor Who is offline   Reply With Quote
Old 01-18-06, 11:56 AM   #5
sch
Senior Member
 
Join Date: May 2003
Location: Mountain Brook. AL
Bikes:
Posts: 3,007
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
I despised them til my Teledyne Titan fell over sideways in the back of the van and bent/broke the fork tip off one side of the fork. Got lax about the side to side restraints and the QR fork clamp evidently wasn't enough. Now I worry about the same thing happening to the bent, and have given up on filing down the bikes that have them.
Steve
sch is offline   Reply With Quote
Old 01-18-06, 12:30 PM   #6
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: 28,847
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Got lax about the side to side restraints and the QR fork clamp evidently wasn't enough.
A properly tightened qr would not have come off under this circumstance and I strongly suspect you hadn't tightened yours enough.

Many roof racks hold the bike by the fork dropouts with a qr skewer which is the only thing that keeps the bike from falling over sideways since the back wheel is just held with a strap around the bottom of the rim. They sustain sidewinds and cornering forces just fine. They were around and worked well before the Lawyers Lips were invented.

A properly tightened qr skewer won't come off, lips or no lips. The lips are there to protect the manufacturer from being sued by the careless or inept.
HillRider 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 07:48 AM.