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PHYSICS SKATEBOARDING™ Black Holes 52x32 78A skateboard wheels (Physics Asymmetric-Wide Profile)

PHYSICS SKATEBOARDING™ Black Holes 52x32 78A skateboard wheels (Physics Asymmetric-Wide Profile)

Regular price $39.00 USD
Regular price Sale price $39.00 USD
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The Black Holes philosophy

PHYSICS SKATEBOARDINGTM  Black Holes skateboard wheels are designed in NYC to exceed the needs of 21st century riders. The different models of Black Holes wheels feature specific polyurethane formulations, profiles (shapes) and cores for different riders and riding styles.

Black Holes 52x32 78A (Physics Asymmetric-Wide Profile)

These wheels are specifically engineered for young beginner and intermediate skateboarders, providing 136% more pavement contact with no increase in wheel width, and superior vibration dampening.

  • Rider type: 4—12 years old, beginners to intermediates.
  • Hardness: Soft and buttery smooth, very grippy (78A)
  • Dimensions: 52mm diameter, 32mm width, 24mm contact patch
Features:
  • Our innovative and unique Physics Asymmetric-Wide profile creates a 24mm wide ungrooved contact patch with the pavement, with no increase in overall wheel width. This means that young riders have 34% more contact with the pavement on each wheel, for a total of 136% more pavement contact for the young rider! More wheel contact = more stability, less slippage, greatly increased rider confidence and faster skills acquisition.
  • These wheels are cast from 100% new Physics 78A polyurethane, which is the grippiest, bounciest formulation possible. Young riders will experience a smooth, enjoyable and predictable ride over even rough pavement and park surfaces.
  • These wheels include our tough thermoplastic polypropylene Singularity Core. Rugged and slightly flexible, this core greatly supports the structural and dimensional integrity of the wheel’s polyurethane, leading to long life and predictable riding lines.
  • Set of 4.

Polyurethane

All Physics Black Holes are cast with high-grade, 100% new polyurethane (PU). Our PU is a durable thermoset polymer that we fabricate in three different hardness formulations: 78A, 83A and 90A on the Shore Durometer Scale. Polyurethane was invented by Otto Bayer at IG Farben in Germany in 1937. The perfect material for skate wheels, PU is also used for wheels of rollercoasters, escalators, elevators, shopping carts, in high-performance adhesives, and even in the stretchy fabric called Spandex. Our PU is fully recyclable.

Polypropylene

Our softer-formulation wheels include an inner core made of a thermoplastic polymer called polypropylene (PP). PP is a mechanically tough and rugged engineering plastic. Our PP is designed to be slightly flexible, which provides a longer-lasting and better riding skateboard wheel. PP was invented in 1954 by the great Italian chemist and Nobel laureate Giulio Natta and the noted German chemist Karl Rehn. Our PP is fully recyclable (resin ID code 5).

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