This decision was based largely on the advise of the German government, which issued a travel advisory to the Asia/Pacific region.
According the a quote from the article:
"The cyclists said they were advised by German authorities to avoid visiting the Asia Pacific, not least Taiwan, which is so close to Japan," said Sara Chen, a spokeswoman for the Chinese Taipei Cycling Association.
Ironically, most of the radiation appears to be blowing out toward North America.
Only one German cyclist will skip out on the Tour of Taiwan. Dirk Mueller decided to drop due to radiation fears.
In other parts of the news...
With both natural and man made disasters having killed scores of Japanese in the worst human calamity to strike Japan since the bombing of Nagasaki, I am sure the first thing one your minds was how this disaster was going to affect the price of the bicycle parts you so badly covet.
Luckily, you don't have to concern yourself with this problem...
In a syndicated report from the CNA:
I would like to know if anyone with experience in the logistics in gathering and transporting large amounts of bicycles overseas has considered organizing a bicycle drive for Japan to donate used bikes for the victims of the earthquake. This would be a wonderful gesture to the Japanese, who have seen their cars vanish among their other possessions, and their built environment destroyed.
The bicycle would not only be a practical form of transportation in the affected areas, but it would be a great way to think about rebuilding those areas in the wake of a disaster that is the result of our reliance on more dangerous modes of energy production.
Bikes are also great for escaping from any more tsunamis.