Broken bike ???

I've been riding since September and on my last ride I attempted to skid. But when I did, the bike just let my pedals go backwards. I usually pull on my right foot when I skid, and the pedals just went back but I was still going forwards, and my rear wheel was too. Feels like its become a single speed -.- I don't know what's wrong. Has anyone else had this problem ???? And could identify what I need to get to repair it?
After I could still ride but I couldn't put much pressure on accelerating and braking. But could still go forward and resist the pedals going backwards a little bit. But no where near the pressure applied when skidding :(

Sounds like the rear sprocket may have come loose a little, so it's spinning in the hub thread, tighten it up and the lockring too.

Yeah this happened to me when I changed my rear cog and didnt tighten up the lock ring enough.

I just tried tightening the lock ring with my hands as much as I could, then I tried to ride it again. It jerked again -.- but my lock ring is still tight after riding?
Is there a special tool to tighten the lock ring ? Or do you guys think it's something else now ?

some one fliped your flip flop wheel?

I just tried tightening the lock ring with my hands as much as I could, then I tried to ride it again. It jerked again -.- but my lock ring is still tight after riding?
Is there a special tool to tighten the lock ring ? Or do you guys think it's something else now ?

need to use one of these http://www.chainreactioncycles.com/Models.aspx?ModelID=17920&gclid=CMOt3_-80bMCFXHLtAodGSEA6g

but if you go in to a bike shop they will probably do it for you for a couple of quid.

some one fliped your flip flop wheel?

Haha I wish that was the case

Sounds like lock ring or possibly stripped threads, remember when putting the lock ring on that it is reverse threaded to turn the opposite ways to tighten and loosen.

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Sounds like lock ring or possibly stripped threads, remember when putting the lock ring on that it is reverse threaded to turn the opposite ways to tighten and loosen.

Oh I think it may be stripped threads too, what would I have to do, if it is ?

flip-the wheel around if the threads on the other side are good.

otherwise you need a new hub. you can't do a lock-ring finger tight, that's pretty dangerous.