This wheel from Autobahn is at the forefront of skate wheels.
Central Hub
83B Outer
97A Core
52mm size
This mix of hardness gives you the comfort and flexibity of a slightly softer wheel whilst having the durability of a rock hard wheel. The central hub allos forn a precision bearing fit and takes out the option of poor fitting spacers.
The tech in this wheel is bound to become the norm one day but until then, make the Torus Ulttra your choice of perfect skate wheel.