Opera SOS Fire Mask 99a 54mm Hardline Conical Skateboard Wheels
Opera SOS Fire Mask 99a 54mm Hardline Conical Skateboard Wheels
Skate Setup Size Chart
Use this chart to match decks, trucks, and wheels. Preferences vary by style (street, park, transition). Beginners: wheels about 52–55 mm, duro around 101A.
Deck width
| Deck width | Height | Age | Shoe size |
|---|---|---|---|
| 7.0" & under | 4'4" or smaller | 8 yrs or younger | Kids 5 or smaller |
| 7.1"–7.45" | 4'5"–5'2" | 9–12 yrs | Mens 6–8 |
| 7.5" & up | 5'3" or taller | 13 yrs or older | Mens 9 or larger |
Deck width and riding style
| Deck width | Recommended riding style |
|---|---|
| 7.45" or less | All around riding for kids 14 yrs & under |
| 7.5"–8.0" | Street, technical tricks |
| 8.0"–8.25" | Pools, ramps, parks, & all-around |
| 8.25"+ | Vert, pools, cruising |
Wheel diameter
| Wheel diameter | Use |
|---|---|
| 49–52 mm | Technical street |
| 52–55 mm | All around, geared more toward street |
| 55–60 mm | All around, geared more toward transition |
| 60–65 mm | Transition |
| 65–70 mm | Some transition; many cruiser & longboard |
| 70 mm+ | Downhill longboard |
Trucks and deck (common brands)
| Brand | Truck size | Deck sizes |
|---|---|---|
| Independent | 129 | 7.4"–7.8" |
| Independent | 139 | 7.8"–8.2" |
| Independent | 149 | 8.375"–8.6" |
| Independent | 159 | 8.6"–9.0" |
| Thunder | 147 | 7.9"–8.2" |
| Thunder | 149 | 8.2"–8.4" |
| Thunder | 151 | 8.4"+ |
| Venture | 5.2 / 5.25 | 7.75"–8.25" |
| Venture | 5.8 | 8.25"–8.75" |
| Ace | 22 | 7.0"–7.75" |
| Ace | 33 | 7.75"–8.25" |
| Ace | 44 | 8.25"–8.75" |
| Krux | 8.0 | 7.75"–8.38" |
| Krux | 8.25 | 8.0"–8.5" |
| Tensor | 5.25 | 7.875"–8.175" |
| Tensor | 5.5 | 8.125"–8.375" |
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Bow Shock Marketplace · since 2024
Sold by Long Beach Skate Co on Bow Shock Marketplace —partner skate shops, one checkout. Product details come from the selling shop; checkout is on Bow Shock.
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Opera SOS Fire Mask 99a 54mm Hardline Conical Skateboard Wheels
The Opera SOS Fire Mask 99a 54mm Hardline Conical Wheels are made for skaters who want precision control and consistent speed in any spot. With a hardline conical shape, these wheels deliver a solid riding surface and smooth slides, ideal for both street and park sessions.
Their 99a durometer gives the perfect balance of grip and slide, while the 54mm size keeps your setup quick and responsive — perfect for technical skating and all-around performance. Finished with bold Opera “SOS Fire Mask” graphics, these wheels bring serious style and energy to your setup.
Specs:
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Diameter: 54mm
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Durometer: 99a
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Shape: Hardline Conical
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Formula: Smooth, fast, and durable urethane
Why you’ll love them:
Built for control, speed, and clean slides, the Opera SOS Fire Mask 99a 54mm Hardline Conical Wheels are ready to handle every line, ledge, and transition you throw at them.
