Radius of Hollow is simply how deep the groove is that is cut into the skate blade from sharpening. The deeper the cut, the more grip the blade will have on the ice. The shallower the cut, the more glide the blade will have on the ice. A smaller Radius Ring (5/16”, 3/8”, 7/16”) will cut deeper into the blade creating more bite, while a larger Radius Ring (1-1/8”, 1”, 7/8”) will not cut as deep, creating more glide.
CHOOSING THE RIGHT RADIUS OF HOLLOW
Choosing the right hollow is a matter of personal preference, whether you want more bite or more glide. The most common Radius of Hollow is a ½”, which is what you will find in most retail settings. We recommend ½” for most youth players (less body weight) and then increasing the radius (9/16”, 5/8”) as the player gets larger.