Rask | K1 | Blue 170-172g

The Kastaplast Rask is a "faster disc." This very overstable driver has a unique inner ridge on the bottom flight plate that is designed to reduce drag. This bump is located a fingers width away from the inner rim. 

Kastaplast gives the Rask a speed rating of 14. This is a disc that power throwers can put everything into without it turning over.