sprockets

[400thumper]

what sprocket combo is everyone running .we ride the dunes alot i put the 12 tooth in front would a different size in back help ? need a little more pep thanks

[redrider ex]

on 300 ex right if you want more bottom end put bigger on back.

[400thumper]

yes thats what i thought .it's a 400ex wifes bike .i'm looking for sizes do i keep the 12 front and go up in back or go back to the 13 stock and put a bigger back on ? would like to keep the 12 front. what size of back ?

[redrider ex]

try a 40.

[tprender]

On the 400ex the stock size is 15/38. If you have a 12 or 13 on the front, the top speed is not very high. and 1st and 2nd or useless, maybe. Could you be talking about and R instead?

[400thumper]

tprender your right it was my raptor i put the 12 on .went down one tooth on the 400 should i try a 40 on the back with the 14 in front ? or any other combos you guys use would like to hear them .thanks for the help