by KevinM » Fri Apr 05, 2013 1:06 pm
These are 2012/2013 tooth count for each and I believe it's the same on the earlier years.
CRF150R Sm Wheel
15T front sprocket
50T rear sprocket
CRF150RB Big wheel
15T front sprocket
56T rear sprocket
09 CRF 450R
07 CRF 250R
45 plt /175 main /JD Red-5th pos
FS 2 trns
05 CRF 250X
42 Plt /162 Main /JD Red Needle- 5th pos
CRFsOnly Fuel Screw 1-7/8 trns out (2 turns winter)
TwinAir PowerFlo Kit /Opened Airbox /White Bros E2