The Radar Energy 57 features the finest outdoor urethane available for outdoor skating. The wheel glides smoothly over rough surfaces and small debris. The Energy 57 are small for transitions and tricks. They also make perfect replacements for the cheap outdoor wheels that come on children’s skates. Sold in packs of four wheels. To order a full set of wheels, be sure to set your quantity to two.
 
Radar Energy 57 Features:
Category: Outdoor Performance
Skating Style: Outdoor Trail Skating
Size: 31 mm x 57 mm
Hardness: 78A
Hub: Micro
Urethane/Colors: Aqua, Red, Clear Blue, Yellow, Pink, and Purple
Sold in packs of four wheels
 
Don't forget to order bearings as well.