So I was just sitting around reading the UCI rules, and I came across this one (1.3.018):
• On impact, no element of the wheel may become detached and be expelled outwards.
• The rupture must not present any shattered or broken off elements, or any sharp or serrated
surfaces that could harm the user, other riders and/or third parties.
• The rupture characteristics must not cause the hub to become separated from the rim in such a
way that the wheel becomes detached from the forks.
I did not know this. The spoke flying through the air in this famous photo http://www.flickr.com/photos/dcmphot...7603977693668/
would seem to indicate that R-sys are not compliant with this rule, no?