WSanders we haven't heard from you about the new 12 tooth sprocket on your raptor im dying to see the results.

 

Sorry guys, man have I been busy lately! I have only ridden it once with the new sprocket and I didn't have my GPS handy that day. I can say that the 12 tooth sprocket is very much an improvement and should be perfect for most folks. The reverse is STILL way too fast though.

I'll post the GPS results just as soon as I can get them and then I'm going to try an 11 tooth sprocket.

 

Just a word of caution regarding an 11 tooth sprocket with a 520 chain; most people do not recommend using c/s sprockets smaller than 12 teeth due to the extreme angle the chain is subjected to in travelling over the sprocket, causing chain breakage & other damage. A larger rear sprocket might be the way to go.

 

Dont you mean larger rear sprocket?I thought smaller in the front or bigger in the rear will give you more low end and less top end?Correct me if im wrong please.

 

x250rDude
I guess you were wider awake than me..Yes, if a 12 T. doesn't give one enough torque, the solution is a larger rear sprocket. Actually if it were me, I think I'd stick with the stock c/s and just go up four teeth on the rear. I would just not be comfortable with the sharp angle of the chain over a 12 tooth. Of course, switching rear sprockets is more costly but maybe better in the long haul. The approximate rule of thumb in sprocket gearing is 2 teeth on rear = one tooth on front. Using that guide line, a 44 T. rear & a 13 T. c/s would approximate the same gearing as using an 11/40 gearing.
Thanks for calling the error to my attention. I'm a firm believer in," bad info is worse than no info".

 

Wrong hotshoe! 3 teeth on the back is equivalent to one tooth on the front. Do the math.

 

It looks like we were both wrong. According to Sidewinder, an 11/40 gearing =3.64
A 13/47=3.62
That looks like 7 teeth to me, and I'll let you do the math.

 

Here is the correct info

stock is 13/40=3.077
my setup is 12/40=3.33
I also have an 11 tooth which would be 11/40=3.64
If you did not want the angle
severity, you could go with this 12/43=3.58
12/44=3.66

I have not tried my 11 tooth sprocket yet, so i cannot tell you if it works right.

 

I see you corrected your post.

CT250R