Designer Ron Arad designed bike with sprung steel loops instead of spokes and tyres.
From Dezeen:
Arad designed the bike for a fundraising project called WOW bikes, organised by the Elton John AIDS Foundation and W Hotels, where six designers were asked to alter bikes from London’s bicycle hire scheme. The bikes are being auctioned on the W Hotels Facebook page until 31 October.
via: dezeenscreen.com