The Rollerblade Performance 90mm Inline Skate Wheels are full of performance and durability so you can skate like you mean business. At 90mm, these skates are ideal for getting you up to speed and maintaining that momentum. The wheels are soft to the point that they will provide vibration absorption while also providing excellent grip. If you're looking for wheels that can withstand the rougher outdoor terrain then you'll want to check out these Rollerblade Performance e90mm Inline Skates. Skate Type: Fitness, Best Use: Performance, Bearings Included: Yes, Number of Wheels: 8, Wheel Durometer: 84A, What Bearings are Included?: SG9, Model Year: 2019, Product ID: 375637, Model Number: 06233100 000, GTIN: 0885315886330