Question about Mongoose Butterfly Summer 12" Girl's Bike
I already tried greasing the chain and wheel base, but I think that I have a similar problem. I think the tire needs to be loosened.
Has the bike been in an accident recently? you can flip it over and spin the back wheel to make sure that wheel is "on center". if the wheel is not bent then u can just unloosen the back wheel then re-align to the center and tighten.
Posted on Jul 29, 2010
Try buying a new back wheel or sprocket?
Posted on Jul 23, 2009
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Posted on Jan 02, 2017
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