Looking at the oem parts list for an 03 cr250r new rear wheel. It seems most cr250 crf450 wheels should interchange, but I'm curious about the differences in prices as listed here from motosport for example. 2002 cr250r 42650-kz3-j40 $510.61 2003 discontinued 2004 cr250r 42650-men-000 $409.93 2005 cr250r. 42650-men-710 $427.15 Compare to 2009 crf450r 42650-men-a10. $393 .43 If the 09 fits that works for me, just seems odd for the wide range of cost for what should effectively be the same wheel?