Spitfire Wheels Formula Four Classic Swirl White w/ Purple Skateboard Wheels - 58mm 99a (Set of 4)
These brand new Spitfire wheels are built to last! Coming in at 58mm in diameter and 99a in hardness, these bad boys are ready for action and packed with steez. Spitfire Wheels Formula Four Classic Swirl White w/ Purple Skateboard Wheels - 99a are sold in (1) set of four (4) wheels. You know, because that's how many wheels you need on a skateboard. Speaking of skateboards, did you know that Warehouse Skateboards sells those too? We're not all wheels, and there's plenty of wood to go around.
Note: Bearings not included.
- One (1) set of 58mm Spitfire Wheels Formula Four Classic Swirl White w/ Purple Skateboard Wheels - 99a; includes four (4) wheels
- Diameter: 58mm
- Durometer: 99a
- Color: White w/ Purple
Shop other Spitfire Skateboard Wheels from Warehouse Skateboards.
How to Buy Skateboard Wheels
What size diameter skateboard wheels do you need?
Skateboard wheels vary in color, size, and durability. Skateboard wheels are most commonly made of polyurethane. The diameter and durometer of the wheel affect the way the board 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 Skateboard wheels are measured in millimeters (mm). The smaller the number, the smaller the wheel. Smaller wheels are slower; bigger wheels are faster.
|50-53mm||Small, slower wheels; stable for trick riding and smaller riders skating street, skate parks, and bowls.|
|54-59mm||Average wheel size for beginners and bigger riders skating street, skate parks, bowls, and vert ramps.|
|60mm +||Specialty riders skating longboards, old-school boards, downhill, and dirt boards; made for speed and rougher surfaces.|
What durometer skateboard wheels do I need?
Durometer measures the wheel’s hardness. Harder wheels are faster; softer wheels are slower but have better grip.
Skateboard 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 instance, 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.
|78a-87a||Soft wheels good for rough surfaces, longboards, or street boards that need lots of grip to easily roll over cracks and pebbles. Designed for smooth rides, cruising, longboards, hills, and rough surfaces.|
|88a-95a||Slightly harder and faster with a little less grip, but the grip is still good. Good for street and rough surfaces.|
|96a-99a||Nice speed and grip-- an all-around good wheel. Great for beginners skating street, skate parks, ramps, pools, and other smooth surfaces.|
|101a +||Hardest and fastest wheel with the least grip. Ineffective on slick and rough surfaces. These are pro wheels.|
|83b-84b||Wheels using the B scale are extremely hard, measuring 20 points lower than the the A Scale in order to allow the scale to extend another 20 points for harder wheels.|
Take a look at our insane amount of skateboard wheels currently in stock.
If you still have questions about skateboard wheels, please visit our Skateboard Wheels Buying Guide.
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