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Old 09-11-06 | 04:24 PM
  #28  
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simplify
ride, paint, ride
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Joined: May 2005
Posts: 1,205
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From: San Diego

Bikes: Cannondale R300 Caad2

Originally Posted by ridelugs
then why do axles break far more often in horizontal drop out arrangements? the quick release is made to purely hold the wheel in place, not to provide structure. i can bend a qr in my hand. we are talking about vertical loads here, not horzontal ones.
I would appreciate not being called names. Name calling and insults have no place here. (Thanks Mods for removing the offending words)

Please stop and think for just a moment about what I said. Please. I did NOT say that the quick release bears any of the weight. It does NOT. It simply holds the knurled nuts together, and THEY (the knurled nuts), by *pinching* the dropout opening, support the axle. The only time an axle will contact a dropout in any way traumatic enough to cause it to break, is if it is LOOSE. That is not the case under normal circumstances. The locknut and the quick release nut hold the axle in place, and the locknut, threaded onto the axle, is what supports it. Can you get that? The dropout opening, whether horizontal or vertical, does NOT support the weight of the bike on the axle in any meaningful way. It's a guide for the positioning of the axle, and it provides a structure for the locknuts to grip. That is what it does. Axles typically break at the point where the bearing cone is threaded on, because that is where the stress is. Not in the dropout.

Last edited by simplify; 09-15-06 at 01:03 PM.
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