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Super soft for carving or cruising, the 72mm Top Shelf Nineball longboard wheels deliver a fast roll. The Nineball formula is a super high quality urethane that is preferred by many of Sector 9's team riders for downhill action.

  • Set of 4 Wheels
Ride Style
  • Downhill
  • Carving/Cruising
Core Placement
  • Offset
Wheel Edge
  • Square Lip
Surface Type
  • Smooth
Wheel Features
  • Top Shelf Formula
  • 75a
Ride Style

Downhill - To go fast and stay in control, you want a big wheel with a lot of contact with the pavement.

Carving/Cruising - Carving/cruising wheels meet the needs of many different skate disciplines but generally, have a good roll speed and are soft enough to handle craggy streets riddled with cracks and rocks.

Core Placement

Offset - The most popular; offset cores offer a more forgiving slide initiation and hookup, while still providing ample grip and control in your slide.

Wheel Edge

Square Lip - The most grip allowing you to carve deeper and take tight lines around corners without worrying about losing traction.

Surface Type

Smooth - The natural shiny finish provides extra grip for railing corners and is more responsive when pumping/carving compared to wheels with a stone ground finish.

Wheel Features

Top Shelf Formula - Sector 9's premium quality Urethane formula that provides you with an ultra-smooth and evenly wearing wheel to keep you rolling for years to come.


75a - These are about as soft as it gets. They offer a smooth ride, ideal for cruising.

Diameter (mm):72.0
Contact Patch (mm):52.0
Suggested Riser Size (in):1/2 +
Overall Rating
Reviewed by 2 customers
Smooth & Grippy
by Arion
Posted on 8/13/2021
Sector 9 72mm Slalom Nineball Longboard Wheels
I bought these for my Hamboard Pescadito and they are very smooth and grippy. Note these are listed here as 75A durometer, but they are actually 78A as the picture shows.
0 person has found this review helpful
Beautiful wheels with a smooth ride
by Bee in Yukon, OK (Verified Buyer)
Posted on 4/22/2021
Sector 9 72mm Slalom Nineball Longboard Wheels - green (75a)
This is the first time I've built a board, and not the last time I'll be buying these wheels. They look amazing, and they ride extremely smoothly without slowing down too much in action.
0 person has found this review helpful