There's usually some profound truth behind these gimmicky english phrases that decorate t-shirts- and in this case, bikes. Bikes certainly are magnificent and Japan is abuzz with them. It makes me very happy .

Bikes travel well on tarmak...but are also good on compacted dirt. Tarmak is problematic in its domination on travelling spaces- it gets too hot. But they're trying to figure out water-permeable tarmak- see: http://web-japan.org/trends01/article/020902sci_index.html

Plants on rooves are a good idea too--As Tokyo burns  in record high temperatures this summer, the metropolitan government is following in the steps of Hundertwasser, requiring 20% of new buildings to be covered in greenery.

See: http://dalore.net/PhotoWeb/Pages/Vienna19.html