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Just as a follow up, I am using the original front sprocket. I believe that is 17 tooth on a 05 America. If anyone out there has changed to an 18 or 19 tooth front sprocket, how has that affected your mileage?



Going up a tooth would net you better highway mileage at a given mph. BUT, you might twist the throttle a teeny bit more around town. To me, going to the 18 didn't make any significant change except the slight gain on highway mileage only. My average has been about the same.

Bob 2005 America, 904cc - sold. 2014 Trophy SE.