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I would suggest taking it in to a small bike shop. Most of the employees that I have seen at bike shops are friendly and willing to help. If you show them what is wrong they might be able to tell you how to fix it. I have done it that way in the past and it has worked for me.


4

It's called a chain ring and, yes, it can be changed to whatever you want it. The dirt bike above has cranks which seem to use chainrings of type 104mm bcd 4-bolt. So any 104 bcd chainring will do the job. E.g: if it is small then that means you have to pedal a lot more to go faster That is correct, but usually those bikes have a very small cog at ...



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