Could this be the World's lightest Timetrial (TT) bike at 6.9kg ?

Why do we have to make do with heavy TT bikes? We know that standard line is that weight doesn'tt make much of a difference in TT. Sorry this is pretty much mis-information. Except for downhill and really flat courses bike: weight is usually important. v important if its uphill (as is rider weight). Indeed dropping 10kg will save about 1min of a hilly 25mile timetrial which has an 2000m (0.5% ave) of hills see this link. There is added benefit of a light rider because a light rider is also an aero rider!

Therefore, we have been trying to find the lightest TT bike and this could be it (with slight modification)!

Andreas's linden Canyon Speedmax

see http://andreaslinden.se/2013/07/04/canyon-speedmax-cf-2013/

-----------------------specs----------------------------

Frame / fork: Canyon 
Handlebar: Canyon 
Seatpost: Canyon 
Switchboard Group: Shimano Dura Ace 9070, electronic 11s 
Front: Zipp 808 Firecrest, tube 
Rear wheels: Zipp Super 9 disc, tube (or Zipp 808) 
Tyres: A.Dugast Speed ​​Diamond Silk, tubdäck 
Pedals: Look Keo Blade Aero 
Saddle: Selle Italia Optima Teknologika

-----------------------weight----------------------------

Weight: is currently 7.3 kg with Zipp 808, without pedals

-----------------------modification----------------------------

In fact his current Zipp rear disc weighs 1175g which is not bad but the "DASH GRETCHEN" read disc is 770g 

and similarly the Lightweight-autobahn-rear-disc-wheel is only 780g; so if he fitted that it would be 6.9kg! (but ok it would cost at extra 2500 euros!!)

.......and I just found a pic where someone has done just that

http://www.slowtwitch.com/Products/Markus_Fachbach_s_Canyon_3772.html