OJ X Black Sabbath Vol 4 Keyframe 56mm 78A Skateboard Wheels
OJ X Black Sabbath Vol 4 Keyframe 56mm 78A 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 The Dark Slide 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+
OJ x Black Sabbath Vol 4 Keyframe 56mm 78a Skateboard Wheels
© 2026 BS Productions Limited. Under License to Bravado Merchandising. All Rights Reserved.
Juice Specs
OJ's 78a soft urethane formula makes Keyframe wheels the perfect choice for a cruiser/filmer board, or for setting them up on your regular skateboard when you're hitting a rugged spot.
OJ Wheels: Roll with the Juice.
The OJ Wheels Black Sabbath Vol. 4 Black 56mm, 78a Key Frame Wheels feature Black Sabbath Vol. 4 artwork on our black 78a urethane with a yellow core.
All OJ skateboard wheels are sold as sets of 4.
