07 Honda CRF 230F
November 16, 2009(Riceville, TN)
Replaced stock 13 w/15 tooth, big performance gain. Went on easy & able to use same chain,just adjusted rear wheel. Sprocket cover will not go back on if you still wish to use it because of tighter clearance w/larger sprocket,can easily be trimmed(plastic)to fit if you wish. Can't comment on durabity yet, fit is a 4 only because of cover issue, shaft,retainer & chain line up fine.
AFAM 520 Front Countershaft Sprocket-15 tooth
June 01, 2009(grayslake, IL)
I purchased this sprocket for my 2003 Honda CRF 230 after installing a Baja Design street lighting kit. The stock 13 tooth sprocket was too low/caused the engine to rev high at speeds of 50 mph or more. I read a review about changing to a 15 tooth. With the original rear sprocket the chain was too tight even with the axle adjusted all the way forward. The left case had to be removed to accommodate the bigger sprocket. I later ordered and installed the 14 tooth sprocket and a smaller rear sprocket. I also removed part of the cover with a grinder/dremel tool to make clearance.