Chain question

[Joe_W]

(07-07-2012, 12:36 PM)nfmisso Wrote:  This is what Joe is referring to replacing - to do this you need to know EXACTLY what you have, and the tools to remove the free wheel from the hub.
http://www.amazon.com/Hub-Coaster-Brake-Shimano-Trim/dp/B004E3R0VQ/

To me, it sounded like you wanted a quick solution with no special tools or skills, which is why I suggested a new wheel.

Actually: no. Since it was a single speed bike I assumed it could have a track hub with a single speed freewheel such as
http://www.cnc-bike.de/product_info.php?cPath=165_548&products_id=11237

However: looking at the picture again, the hub body really is quite thick (much thicker than a typical single speed hub), so it could house a lot of mechanical stuff. Then, the ratcheting mechanism would (of course) be a part of the hub and (maybe) difficult to service. For some hubs (eg. Mavic) this is serviceable and easily accessible. This is why you should to find out more about the hub (manufacturer, type, ...) sometimes stuff can be serviced, sometimes not. I' get a new rear wheel (and try to fix the old one, if possible, as a backup).

Edit:
Oh, and the sprocket might just be screwed on then... you can take off the old one and put it on the new rear wheel.