well, sheldon is the horses mouth. we are all just the bad breath that particular horse emanates.

that being said. Yeah, grab yourself a freewheel kit, take off all those unnecessary cogs/chainrings/derailers/chain links and rock it.

you may need to get your rear wheel redished to make up for the straight chainline/ less gears, blah blah.

just make sure you read up on your gear inches and find the right gear for your fitness/riding style/terrain. that is a searchable/browsable topic.

GOOD LUCK.