Cartwheels from Great Britain are high performance core wheels.
Available in two different materials:
The V2 features the unique soft and grippy Cartwheels material.
The V3 are made from hard precision material much like FF wheels.
The new V4R have a solid metal core and the outer material is the same one as the V3s.
Cruiser Wheels got the V3 material
Sizes:
classic =5mm wide and 7,5mm diameter
mega = 5mm wide and 8.5mm diameter
cruiser = 7mm wide and 7.8mm diameter / centred bearings