Belting!

i read this today, rather fitting i think;

Do you run single speed or an internally geared hub? Wanna save a bunch of weight, have a drivetrain that last virtually forever (up to three times as long as a chain-drive system) and is uber-quiet? Carbon belt drive might be the way to go. Trek already has one model in their lineup using it this year. The drawback? Unless your bike has an elevated chainstay you have to cut the frame to get it on, as the belt is an unbroken loop. Kinda of a big negative that I have a feeling they are working on.

from NSMB's coverage of Interbike if ur interested