ok The gearin on trx450 are 14/38 and i want to change my gearin for more Top end i was thinkin goin 15/36 will it work good???

 

You looking to go 100 mph???

I think this is something you will just have to try out. Front sprockets are cheap, so I would start out by doing the 15, and see how I liked that. You might ultimately lose to much low end, and be slow off the line if you go to extreme.

I ride open desert and am geared down a tooth in front, and it is still plenty fast on the top end for me! Do you have the HRC kit???? It will net you lots more power on the top end, which might help with ultra tall gearing!!!

 

if possible, why dont you just keep going up on your front sprocket instead of changing the back one.might save a little money

 

i was thinkin of change the front and back

 

What kind of riding are you going to be doing, where you don't mind not having any low end????