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What is the difference in compound and size?Updated 2 years ago


The compound is the hardness of urethane in street wheels. The higher the number, the harder the compound/durometer.

  • Lower durometer wheel = softer wheel and adds more grip (e.g. 74a, 107mm ABEC/Evolve)
  • Higher durometer wheel = harder/stronger wheel, slides more easily and it best for aggressive riding (i.e. 83a, 85mm Purple Caguama)



The size affects the top speed and torque.

  • Smaller wheel = lower speed + faster acceleration/torque (e.g. 85mm Caguama)
  • Larger wheel = higher speed + slower acceleration/torque (e.g. 107mm ABEC/Evolve)


Be sure to read what is the difference in drive gears?

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