Sorry, my wife has a 300ex and her front sprocket is a 13, and I couldnt imagine that the 400ex came stock with a 15, but if it does, then it does. My quad does great on trails, but I mainly ride it in the dunes

 

what dunes do you ride at? I go glamis or pismo. I want to try dumont out.

 

Wanted to let everybody know that I picked up my new 14tooth sprocket from JT Racing. Installed it WOW! big difference. A lot less shifting, helps to keep the bike from bogging in corners. I am very satisfied with it. Thanks for all your help, advice, etc.

 

Do not forget the above comment. Just changing gearing in increments of ~3 teeth at a time can/may leave you with something that doesn't work well for you. I've found that all around the 14/40 setup on my YFZ has worked the best for my type of riding. I'm not done testing though.

selector

 

I go to Glamis and Pismo as well

 

hey, would u reccomend the 14 tooth sprocket for dune riding? i couldn't tell from all the posts if it gives more power and torque, or more top end? something with power and torque would be nice for me. i already have a FMF silencer, and re-jetted with new air filter, and a stage 1 hotcam. i figure with a new sprocket i will be able to climb jus about ne thing w/o a run in 2nd gear. how far off am i from the truth?

 

My wifes 300ex has the stock 13/38 gearing and it climbs good. I would like to try a 14 toth sprocket because on the flats it could definately pull the gear, but I am not sureif it would climb as well.

 

Hey CroBiker Let me try to answer that for you. Putting a new sprocket on does not add power or torque. However it does put the power that you already have where you need it. I wanted more performance for trail riding. gowing up hills, and pulling out of corners without having to down shift all the time. Changing the sprocket was definately a cheap and easy way to get the performance that I was looking for.

 

ok, thanx. i know that on a BMX bike putting a smaller sprocket on front gives u less top speed, but it's easier to go up hills (which is what i meant about more power). is that the same with quads?

 

Exact same concept. I put mine on two weeks ago. Huge difference. I can climb hills now in 3rd gear where I would normally would have to down shift to 2nd. I also a lot more use out of 4th gear now. I think it is the way to go.