77mm Strikers are faster and smoother because they have more lively urethane than smaller wheels on larger (45mm) hubs. All of the contact patch is contained within the width of the hub making for smooth, predictable and controlled slides. Once you've slid around, it has enough traction to "hook you back up" to keep you up to speed. It's also smoother and lasts longer than wheels with less urethane. As with our other wheels, it won’t delaminate because the urethane is connected to the polyurethane hub with a chemical bond instead of glue.