Sector 9 Race Formula Dual Durometer Wheels 74mm/78a Out 90a In. Sector 9 Dual Durometer Racing Wheels are designed so that the harder durometer is on the axle-side of the wheel and the softer durometer is on the rolling surface. By having a slightly harder durometer on the inner level of the wheel, the wheel will keep its shape more during hard turns. A must have for any longboard race enthusiast.


Features

- Size: 74mm
- Durometer:78a Out 90a In
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- Sold in sets of 4
- Bearings and spacers not included.