Originally Posted by
lollerskatez
they had semi horizontal dropouts with closure in the immediate back preventing a wheel from straight fallin out.
not everyone has ''typical gearing''
what is the point of this conversation, it has been made obvious already that it isnt a readily available hub unless you order a conversion kit and go out of your way, and putting a cog on a freewheel threaded hub is a stupid thing to do unless you have brakes
The chain keeps the wheel from falling out. Chain pull is not going to push the rear wheel out of the back.
Typical gearing for a mountain bike often includes a 22-24 tooth chain ring and 30-34 tooth cog in the back. This puts about 4 times as much force on the chain and cog as you will find in a typical fixed gear given a rider of the same power. Please don't insist that there are many fixed gear riders riding 22 front and 34 rear.
The point of the conversation is that there is no physical reason which precludes using a QR on a fixed gear bike. They are plenty strong for the application. The reason not to boils down to tradition and availability (driven by tradition). Geometry of the track end may also play a part as some have a raised section around the nut.