Discoblox - Black (Roll-Line Plate) Clear The 167 bearing is the

The 167 bearing is the only bearing on the market that is designed specifically for Derby

Anti-stretch material is used in the skate boots

This is the perfect roller skate

This skate features a super light and strong Powerslide Elite 9

Discoblox - Black (Roll-Line Plate) Clear The 167 bearing is theThe "Coping Mechanism" that is designed to fit almost any skate plate. #Discoblox will help you stall, drop in and slide on coping. Measure the distance between the inside faces of the king pin. This will determine which size bar will fit. Disco Tech has produced the Discoblox to suit Roll Line plates. These have a mounting bar specifically made to fit roll line king pins. They also come with a bushing suited to replace the Roll Line upper. Easy to