yes i decided to leave the rear one at 42 for now and just change the front one to 15 just to see what the difference would be .....and i was gonna go 15/43 someone said that is to much so ill just try the front on ...what do you think that will help in your opinion just experimenting for the best wheelie set up with out losing to much power on top end

 

-1/+2 is the most popular when changing them because you can use the stock chain

 

thanks you have been the best

 

Well, a -1/+2 setup would mean about a 20 mph loss on the top end but easier to wheelie. A -1 on front while leaving the rear stock would result in a 12 mph loss on top and still easier to wheelie than stock gearing.

As you can see, changing 1 tooth up front has a more profound effect than changing 1 or even 2 teeth in the rear.

Although I said yesterday that I originally ordered a 520 conversion kit with stock gearing I went back today and ordered a 1-tooth smaller front sprocket. I'm going to try the smaller one out (I already know what the stock gearing feels like) and if I don't like the change I have a brand new 520 stock size front sprocket I can quickly swap it with. For $28 for the extra sprocket it wasn't much.

PM me if you haven't decided yet on where you'll get your sprocket/chain conversion kit. I shopped around and they have the best prices for the brand quality that they sell.

 

well decided just to go with -1 on front just to see what it would do...bike all tore down sprocket will be in tomorrow