If you are not 100% satisfied with your purchase, you may return it to Warehouse Skateboards within 30 days of your receipt date.
64mm/78a Sector 9 9 Ball Longboard Wheels
These brand new Sector 9 wheels are high-quality and made to last. They measure 64mm in diameter and 78a in hardness, and will provide a smooth ride. Sector 9 9 Ball Longboard Wheels are sold in (1) set of four (4) wheels.
Note: bearings not included.
It is extremely important to choose the correct wheels when assembling your board. Longboard wheels tend to be larger than standard skateboard wheels, and usually ride better on rougher surfaces. This allows riders to reach a higher top speed compared to riding smaller wheels. The durometer for longboard wheels usually range from 75a to 90a.
Longboard wheels vary in color, size, and durability. Longboard wheels are most commonly made of polyurethane. The diameter and durometer of the wheel affect the way the longboard rides. The diameter and durometer are a matter of personal preference and skating style.
Diameter is the size of the wheel when measured from top to bottom. All longboard wheels are measured in millimeters (mm). The smaller the number, the smaller the wheel. Smaller wheels are slower; bigger wheels are faster.
Durometer measures the wheel’s hardness. Harder wheels are faster; softer wheels are slower but have better grip.
Longboard wheel durometer is usually measured on a Durometer A Scale which goes from 1-100 to measure hardness. Some companies use the B Scale which measures 20 points lower, allowing the scale to be extended by 20 points for harder wheels. For example, an 80b durometer is the same as 100a durometer. These skateboard wheels have a larger and more accurate range of hardness. The average wheel durometer is 99a.
Longboard skateboard wheels also come in many different shapes to suit various riding styles. Wheels with rounded lips are better for cruising, freeriding, and sliding, rather than downhill racing. Having a rounded lip allows the wheel to enter into slides with ease. Having the rounded lip when racing may create issues, because the edges will not grip the street when turning. Wheels that have straight edges rather than a round edge are typically designed to give riders more grip and control. Straight-edged wheels work great for downhill racers that need to grip the street.
Wheel bite occurs when your deck and wheels rub together. It usually occurs when you are turning hard or when you land a trick, and you stop immediately upon impact. Wheel bite can leave an indent where the wheels and deck meet. To prevent this from happening you should look into assembling your board with riser pads or medium to high skateboard trucks.
Take a look at our insane amount of longboard wheels currently in stock.
If you still have questions about longboard wheel sizing, please visit our Longboard Wheels Buying Guide.
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