Radius of Hollow "ROH"
Flat Bottom V "FBV"
Radius of Hollow
This is the traditional way that skates have always been sharpened. "Radius of Hollow" refers to the Radius of the surface of the blade. It has a curved shape.
Flat Bottom V
This is a newer way to sharpen skates. The "Flat Bottom V" maximizes the gliding surface of the skate to give more speed. It can also increase your turning ability. It has an angular shape.
We can sharpen your skates to your preference. If you are not sure, we can make a recommendation.