I have 2 sprockets for sale here. They are Brand NEW. Never been on a bike. I bought them and then didnt need them. Long story. BUT, They are for a 525 (STOCK) chain and WILL FIT ANY F4i and ANY 600RR (including 07). I have a 15T (which is -1) and a 16T (Factory Lightened). They sell on ebay for $34 each plus $10 for shipping ($44 for just one). I will sell them for $30 each (FREE SHIPPING) or $50 for both of them (FREE SHIPPING). Let me know if anyone is interesed...

BUMP

I also have a Vortex rear sprocket 44t that is the RED anodized sprocket for sale. I will take $55 shipped for it. It is also for a 525 chain...

See example here, I know that the page says its a 520 sprocket but mine is for a 525 chain
http://www.vortexracing.com/index.php?class0_0=1528&class0_1=1565&class0_2=174 4&class0_3=1745&xsearch_id=products_search1&src=di rectory&view=Products_lister&submenu=&submit.x=12& submit.y=7