spocket size

[paper racer]

what size rear sprocket would you reccomend for raceing. I have a 1991 YZ250

 

[stx]

Need a little more info on what type of racing,track sizes,conditions ect. But a 52/13 should be a good starting point. Good Luck!

 

[Moto Squid]

on my 02 cr 125 stock was 13/51 and I went to a 52 because the jump from second to third was a bit much. You have to ride the bike and see how it feels

 

[paper racer]

It is outdoor mx tracks. I haven't raced them yet so I can't tell you to much about them.

 

[yz03]

On my yz125 i went from stock 49/13 to 51/13 and all i can
say is wow!! gotta watch the front end now!

 

[paper racer]

My front sprocket is 14 rear is 48