Star Wheels were considered as a top-tier roller skating wheel for figures, praised for their exceptional smoothness, good grip, and high quality materials. Five (5) hardness options are available to adapt to various skating surfaces with varying amounts of grip.
| Standard “D Scale” Rating | Previous STAR Models | Roll-Line GIOTTO “D Scale” Hardnesses | Amount of Skating Surface Grip |
| 47 | CS40 | 47 | Least Grip / Slippery |
| 49 | HD70 | 49 | Slightly More Grip |
| 53 | HD75 | 53 | Medium Grip |
| 57 | HD80 | 57 | Adherent Surfaces |
| 60 | HD84 | 60 | Very Adherent Surfaces |
– The lower the Shore “D Scale” rating, the softer the wheel, the more the grip, less roll.
– The higher the Shore “D Scale” rating, the harder the wheel, the less the grip, more roll.
– The Roll-Line GIOTTO has a profile of 21mm and is made of Pluricomponent Thermoplastic Elastomer.
– While the new SFERA has a profile of 32mm and is original Star compound.
– Both the Roll-Line Giotto and new SFERA are 63mm in diameter.
