Any question answered...

@tonioionio how much do you want to spend?

Is it for the road or track?

Braking surface?

What about Mavic eclipse's?

If it was me, I would go for hand built - planet x track hubs with velocity A23 rims and ACI spokes for a budget build. Royce or Mach hubs on HED C2's with sapim spokes.

3kg sounds a bit OTT.

I dont really know the exact budget but I would say around 100-150?
The front wheel must have a braking surface but I dont really know if I will need the rear wheel CNC except I stop using the bike as a fixie!

The rest you said seem like chinese to me man sorry !!:P
Because I dont really know much about wheels etc...Thats why I am looking for something that is a good and complete solution but not expensive :P

Can I have more than one speed If i change the thing on the rear wheel on a Flite 100 ?:P

Thank you for the answer man!

P.s : Thats one of the pairs I saw on ebay.

http://www.ebay.co.uk/itm/ESPRESSO-700c-COASTER-BRAKE-DEEP-V-BIKE-WHEEL-SET-AQUA-/250942029378?pt=UK_sportsleisure_cycling_bikeparts_SR&var=&hash=item801236ab55