Hello all newbie here I am looking at one of these but in an R it is 2 years old the guy says it does 35-40?but your review says 27? and it has internal gears how can I make it faster I am looking to get 35-45 out of it how much do I gain if I do a 180 big bore kit looking to use on our property up-north and trail ride also will this fit down an ATV trail?
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