Exclusive flat round profile designed for the optimal balance of stability and acceleration. 56mm to fit all low profile frames on the market, but amazing on Prime frames. The 88a hardness provides a ride with the perfect balance of performance and durability.

Sold in packs of 4, but we highly recommended you ride them flat.

50/50 is the oldest brand to make replaceable aggressive inline skate frames. It has been revived in recent years by Lawrence Ingraham. Follow him on his youtube page:
http://www.youtube.com/backtoblading

More information about wheels in general here:
http://thisissoul.com/general-info-on-inline-skating-wheels

The width of inline skate wheels are always the same, If you are not sure these wheels will fit your skate, you can always contact us