I just spoke to Gilles and told him about that topic! He was making something for a french tv channel, nothing huge... He will just appear to the news.
If he rode with try all pads, it was just to test them, nothing more!
I changed my rear tyre to my Der Kaiser 2,5" and my bike is now 8,8kg!
Yes I know it sounds a bit silly: I don't care as long as my bike is under 9 kilos but... IT'S 8,4 KILOS!
Sorry for that mate!