Sure-Grip Fo-mac Premiere Mini Mac 45mm (Set of 8) Solid Black Roller Skate Wheels paid but they also help with

but they also help with speed and reduced rolling resistance

Balls roll deep in raceway channels

Abec 7 bearings

Higher taping between the midsole and the upper adds durability

Hollow Chromoly Kingpin

Sure-Grip Fo-mac Premiere Mini Mac 45mm (Set of 8) Solid Black Roller Skate Wheels paid but they also help withOriginal clay roller skate wheel in a MINI version 45mm. Available in original two tne brown and black. 45mm x 30mm. Fo Mac wheels are retro style wheels using a compression molding process. The materials used are much different than urethane wheels of today. The formulas used are unique and different from each other and can offer a different skating feel. Many factors will contribute to the performance of a wheel like this; such as weight, floor