More in odd drivetrains:
http://reviews.mtbr.com/interbike/spot-bikes-belt-drive-carbon-drive-system-bikes/http://www.bikebiz.com/news/29367/Carbon-belt-drives-are-standardisedhttp://quickrelease.tv/?p=241"The advantages of a belt drive system are low weight, noise and maintence [sic]. The weight of the belt is about 55 grams while a typical chain of the same length is about 255 grams. The system should be quieter as it experiences no squeaks, pops and rattles. And finally, the belt never needs to be oiled. It is more durable than a chain and never stretches. It’s lifespan is around 8000 miles."
and
"For the most part, belt drives will be most useful for city bikes but Bonney also discusses how DH MTBers are already finding belt drives make them go faster. And Arthur makes a plea to British Cycling: evaluate these 99.4 percent power efficient belt drives for use on track bikes."
Ah, to never clean a chain again...
