patterned Posted May 28, 2009 Share Posted May 28, 2009 I've purchased an OEM 40T rear drive sprocket. Now I need to get a front sprocket, but I wanted to ask you guys some questions before I do.. just so I can learn a bit. Are there certain size sprocket combinations that are required? Like 16/40? Or can I use a different front sprocket with a 40 tooth back sprocket. What will give me better mpg, or lower RPMs at higher speeds? I'm getting confused with this stuff Thanks! Link to comment Share on other sites More sharing options...
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