I just purchased a 2009 CRF150 thinking it was a 150r Big Wheel (was told it was), I noticed the tire size for the rear is 90/100/14. After doing some googling it seems that is small for even the 150r and 150f. Did this bike come stock with a 14" wheel? How can I tell which bike I have? The F, R or RB? Sorry Im a newb to the 150 line..
Hi, and welcome to the forum! According to the microfiche, stock rear tire on the RB model is 90/100x16. Stock front is 70/100x19. IIRC, the only difference between the R and the RB is wheel and tire size.