Lightweight Challenge 700 extreme

[Michael]

Sebastian Roth has tuned his Lightweight Challenge down to 721.3g! :eek:
What dou you think about it?

more pics.... (http://www.light-bikes.de/website/new/2007/10/17/lightweight-challenge-700-extrem)

http://www.light-bikes.de/website/new/wp-content/uploads/2007/10/csvr2988g.jpg.jpg