Seismic Megawatt Defcon Wheels 90x58mm 76a - Mint (Set of 4)
Seismic Megawatt Defcon Wheels 90x58mm 76a - Mint (Set of 4)
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" |
Couldn't load pickup availability
Bow Shock Marketplace · since 2024
Sold by Skates USA on Bow Shock Marketplace —partner skate shops, one checkout. Product details come from the selling shop; checkout is on Bow Shock.
- Packages may ship separately from each shop
- Free US shipping on orders $150+
More miles per hour, distance per push, and blocks per watt!
- The world’s fastest urethane and most progressive hub-and wheel engineering bring unparalleled rebound and superior energy efficiency to a huge 90mm-diameter shape.
- Higher top speeds, longer push distances, and extended ESK8 battery life and riding range!
- Next-level weight-saving Turbine hub features bigger vent holes for more accessible e-board pulley adapter fitting.
- Hub structure ingeniously sculpted for highly-optimized routing of wheel rebound energy.
- Width, edge profiles, and bearing seat offset finely calibrated for race-style grip and more consistent wear.
- Half-millimeter concave running surface preloads edges, sharpens grip, enhances rebound.
- Surprisingly quick, smooth, and agile handling for its size, even through hard corners. In a class by itself!
Poured in DEFCON – the world’s fastest urethane!
- With a remarkable set of unique and highly-advanced properties, Seismic’s DEFCON ultra-high-rebound urethane is the fastest formula in the history of skateboard racing, bar none.
- Credited with virtually every significant world speed and distance record – including the official Guinness Standup mark (91.17 mph / 146.73 kph), the official Guinness Street Luge mark (101.83 mph / 163.88 kph), the official Guinness Standup Slide mark (73.34 mph / 117.35 kph), and the Long-Distance Push Mile, Marathon, and 24-Hour Ultra marks!
- Defcon’s superior energy efficiency means not just higher speeds and longer push distances, but also noticeably longer battery life and rolling range on your e-board! (If not yet available, ask your favorite e-board brands to offer pulley adapters fitted to the Turbine hub.)
-
Available in two finely-tuned durometers, both with predictable handling and slow, consistent wear…
– 74A Mango: Fast, smooth, grippy, and lively underfoot. An optimal balance of properties for most surface conditions.
– 76A Mint: Ideal for smoother surfaces. Very fast roll with friendlier slide characteristics. Excellent durability.
The TURBINE core – NEW!
- Integrates nearly 20 years of advanced hub R&D.
- 53mm tall x 46mm wide – the largest and most supportive hub ever seen in a wheel this size.
- Formed from 85D fiber-reinforced thermoplastic – the toughest hub material in the industry – with robust bearing lugs.
- Eight (8) contoured crossbeams (hollowed-out for lightness and aesthetics) combine with deep, wide “saddle” profile to create robust edge support and ironclad 3D mechanical lock with urethane.
- Central crossbeams act as internal “turbine blades” that continuously catch and guide Defcon’s superior rolling rebound energy with perfect balance and revolutionary efficiency. Boosts both speed and e-board range to another level!
- Stiff saddle walls trap and return lateral wheel flex energy to supercharge rebound out of pumps, carves, and tight corners.
Features:
- 90mm tall x 58mm wide MEGAWATT Wheels
- 53mm x 46mm TURBINE hub (NEW!)
- Bearing seat offset 8.6%
- 53mm running surface
- Radiused outside edge, beveled inside edge 11.0 oz. each
- Sold in sets of FOUR wheels
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