Yeah, I'm totaly not gaining or keeping my speed as I coast down hill. Its really strange and is confusing the hell out of me.

I've got a light weight Trek 7.2FX "hybrid" with 700x35 tires. I'm not normally upright unless I'm just cruising around town with friends.

It wouldn't be so bad if I just maintained speed but I get to the bottom of the hill and I might as well be stopped.

I'm starting to think my gears are rubbing my back tire, but I'm as ignorant as they come when talking about gear maintnence. So I'm not sure what to do.