520 conversion for 04 cbr600rr
 

I am looking to purchase tomorrow for my 2004 cbr600rr and thought I would see if anyone has any input for me before I buy. I have been shopping around for a 520 conversion red chain and black rear and new front sprocket. I have found them several different places and prices! I was wondering what you guys thought a grood brand for sprockets and chains (x-ring/o-ring)and how did it feel going down to a 15 tooth in the front and stock 43tooth in the rear? I was going to keep the stock 16/43 but I am not sure.:icon_bike:
Thanks