Durometer Visualization
Soft (Grip, Outdoor)
Hard (Speed, Slide)
78A
88A
95A
103A
78A - 84A (Soft)
Excellent for outdoor surfaces, asphalt, and concrete. High vibration dampening and maximum grip.
90A - 103A+ (Hard)
Ideal for slick indoor floors (wood/sport court) and skate parks. Facilitates sliding and speed maintenance.
608 Bearings (Standard)
- • Bore: 8mm
- • Outside Diameter: 22mm
- • Width: 7mm
- • Compatibility: Universal standard for most quad skates and inline skates.
688 Bearings (Micro)
- • Bore: 8mm
- • Outside Diameter: 16mm
- • Width: 5mm
- • Compatibility: Performance/Speed setups; requires specific hubs with smaller bearing seats.