Is my hub/drivetrain FUBAR? (Video - help a noob)
So this is what it's doing. When spun like this with other wheels, the cranks are stationary...it looks like the rear hub is driving the cranks somehow?
Did I break something?
When the rear wheel is spinning, and you try to hold the cranks stationary does the rear wheel still try to drive the chain?
Does the chain get all tangled up as the rear wheel spins and the cranks are still?
From the looks of it you have a bad freehub body on the rear hub. You need to get a replacement 8/9/10 speed freehub body
from a LBS or online.
Neg...if I spin and hold the cranks, the wheel turns normally.
It doesn't spin by itself for very long though, like something in it is too tight.
The 404 I have spins for 2-3 minutes, or more, by itself.
Unless you have a dork disk that I can't see, that's rubbing on the cassette, then it looks like the cassette body needs replacement. The freehub is simply not freewheeling the way it should, freely. Oldskoolwrench's advice is spot on except for the chain tangling part. If you don't get it fixed, though, you will get the chain tangling before summer's over.
Unless you're already handy with cone wrenches, I suggest taking to wheel to a shop where they'll dismantle the hub, find a replacement cassette body, and put it all back together.
all it really means is that the freehub is displaying more friction than your BB. not necessarily a good or bad thing. one, after all, has got to be the loser. or should i say "looser"?
most of my bikes will do that.