Whichever direction I rotate my pedals, the wheel rotates. And when I move the wheel, same thing. How do I fix it?

Here is a clip:

This is the model: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_786803_langId_-1_categoryId_165499

  • 2
    Would you consider editing your question to add some text to describe the problem you're experiencing? The video is a little unclear, so a few extra words might be helpful.
    – amcnabb
    Commented Apr 15, 2013 at 20:40
  • Or just consolidate it with your other question about the chain slipping as the two problems seem to be related.
    – Johnny
    Commented Apr 15, 2013 at 22:50

2 Answers 2


This bike definitely has a derailleur and is not intended to operate as a fixie (i.e. something is definitely broken.)

A normally functioning multi-speed bicycle has a mechanism that allows it to pedal forward and coast (freewheel) when standing on the pedals. Many older or cheaper bicycles have a "freewheel" which accomplishes this. Other bicycles have a freewheel integrated into the hub body, a "freehub." They're essentially the same mechanism - a ratchet with a few pawls.

In all likelihood, the pawls inside of the freehub or inside of the freewheel have seized or have come apart. Procure a can of penetrating oil and spray the seam where the cogs and the hub meet (i.e. where it is supposed to rotate. I've included a photo with arrows indicating where to spray. Be careful not to get oil on your rims or brake pads.)

If this doesn't loosen it up, you'll need to either replace the freewheel or overhaul/replace your rear hub.

Cassette and Freewheel

  • This is as close as I can get without additional information or better quality video.
    – WTHarper
    Commented Apr 15, 2013 at 21:17
  • @Carnotaurus The other video you posted is indicative of this problem. The derailleur is being pulled taut because the hub isn't freewheeling. If you were to ride this as it is, the derailleur would likely be torn off when you stopped pedaling.
    – WTHarper
    Commented Apr 15, 2013 at 21:28
  • 1
    I'm impressed that you can see a derailleur in that blurry video--I can't see anything.
    – amcnabb
    Commented Apr 15, 2013 at 22:56
  • The angle that the chain heads out, but it is barely there. @Carnotaurus also posted a second related question regarding the same bike and you can see the drivetrain much better.
    – WTHarper
    Commented Apr 16, 2013 at 0:15
  • Ok, I have a can of degreaser. So, I am going to try exactly this after work.
    – Phil Helix
    Commented Apr 16, 2013 at 4:44

If you flip the bike upside down (as you have done), then "pedal" in the "right" direction (as if you were trying to make the bike move forward), then let go of the pedal, the pedal should stay stationary (or maybe drift around slowly) and the chain should remain relatively straight and taut. If, when you let go, the pedal keeps moving pretty much at full speed or the chain bunches up, then the freehub/freewheel is not "free".

If that is the case, the first thing to check is for any sort of trash (leaves, string, etc) caught between the large rear sprocket and the hub. If you find nothing then the rear wheel needs to be serviced.

Since your mechanical ability is apparently quite limited, I'd suggest you take the bike to a shop, rather than attempt to fix it yourself.

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