Here are the links to get you started:
http://www.chaparral-racing.com/Category/street-bike-front-tires
http://www.chaparral-racing.com/Category/street-bike-rear-tires
I don't know how much longer this sale will run; IIRC, these sales are run every year, and the usually end on OCT 31st, so get while the getting is good.