If/when graphene makes it mainstream you will get your wish and then some. We could all be riding around on 12 pound full suspension MTBs that are way stronger than what we have now in 10-15 years.
Seems crazy (insane!) but a 10 pound full suspension, extremely strong, mountain bike is probably totally within the realm of possibility if graphene ever trickles down into the components that we currently see carbon fiber used to manufacturer. Progress is being made. It truly is a revolutionary, futuristic material!
Some pics of recently produced graphene aerogel