The Copenhagen wheel in action via dcycledesign
(Source: visualgraphic, via thegreenurbanist)
Aê galera, olha essa pagina, é muito boa. https://www.facebook.com/SigaOFluxo //sigaofluxosp.tumblr.com/ As fotos que...
The Copenhagen Wheel allows you to capture the energy dissipated while cycling and braking and save it for when you need...
I want this.
can i have this for my bike :O
This is really cool.