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My son's BMX will no longer 'free wheel', the pedals turn continuously. If he stops the pedals the wheel stops, what has gone wrong?

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The back hub will have a one way clutch (more like a starer pawl really) between the chain sprocket and the wheel.

You can access that by removing the axle and the bearings, what ever is left is the clutch. There were several designs for the clutch, and it's attachment. Some were just nut held and otherswere threaded on to the wheel spindle (most popular.)- You might need a special wrench, but most can be removed with a medium seized auto lug nut driven into the cavity and spun off with a wrench. Once removed- you can take it to the bike shop for a replacement as they are usually tore up pretty bad by the time they lock up.

Posted on May 26, 2011

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http://www.jimlangley.net/wrench/pedalbasics.html


http://www.youtube.com/watch?v=SXxplE_L1Rw


http://www.ehow.com/video_4415604_remove-pedals-bicycle.html


Just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information and videos at the websites indicated.

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