All I can think of is why?
http://www.eurosport.co.uk/home/pages/V4/L2/S18/sport_Lng2_Spo18_Sto636529.shtml
A British citizen is due to be charged under Spanish security law after
flinging a five kilogram rock into the peloton during Monday's third stage
of the Vuelta a Espana, from Burgos to Soria.
The rock struck the bike of Kazakh rider Alexandre Vinokourov, third
in the 2003 Tour de France and a leading race contender, reportedly
destroying one of his wheels.
The man was identified later by Spanish police as English and was due
to fly back to the United Kingdom on Wednesday.
They have so far failed to discover a motive for the attack.
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Mark
1x1 wheel, 3x2 wheels & 1x3 wheels.