Originally Posted by flat-tire
Yesterday I was riding my single speed beach cruiser when a horrible, grinding noise came from my rear hub. It progressively got worse as well as becoming more difficult to pedal. I've had the bike for a few months but I suspect I either have a bad bearing or there isn't enough grease packed in causing the noise. Any thoughts. Also, anyone know of a good site for instructions on servicing a rear hub?
I did that same thing with a 1990 Buick LeSabre. $700 and a new transmission later, what did I learn? Anytime a vehicle makes a grinding noise, stop moving (unless you are fairly certain that it is only the neighbors trashcan dragging underneath you).
Sounds like a shot hub.
You may want to post in Mechanics forum.