Re: Missy Giove's QR pops open (long)In news:timmcn-8EE116.firstname.lastname@example.org, Tim McNamara <email@example.com> typed:
> James Annan, Jobst Brandt and Chris Juden- to name three- are not "clueless and inexperienced
Jobst AFAIK doesn't ride mountain bikes, Chris does but I've found some of his comments in the CTC
magazine "curious", James I don't know about.
> When it's muddy, I don't ride on the trails because it's destructive and leads to trail erosion
> and closures. Riding in the mud may be fun, but it's selfish.
If I followed that advice I would rarely get out off-road ;-(
> Disk brakes *do* exert an ejection force on the axle because the design necessarily makes it so.
> Simple as that. If you want to experiment, turn your bike upside down, loosen the QR, spin your
> wheel in the appropriate direction, and hit the brake. The axle will pop out of the dropout either
> partially or completely. That *is* the design flaw and it's not a hypothesis, unless you think
> that Newtonian laws of physics and pi are also hypotheses.
I guess you could say, take out all the wheel bolts on a car and drive down the road. The wheels
fall off. Is that a design flaw? No because the wheel bolts prevent them from falling off. It is not
uncommon that things would come apart in use without the fasteners. So whether its a design flaw or
not depends on the design of the fastening system.
"All truth goes through three steps: First, it is ridiculed. Second, it is violently opposed.
Finally, it is accepted as self-evident." Arthur Schopenhauer