Spitfire Lock-ins Formula Four 99 A
Spitfire Formula Four Lock-Ins 99A skateboard wheels combine Formula Four urethane with the distinctive asymmetric Lock-Ins shape.
The straight inner edge provides a defined contact surface when locking into curbs and rails. The sculpted conical outer profile creates the signature Lock-Ins geometry while reducing material where it is not needed.
The 99A hardness delivers a precise, controlled response. Formula Four urethane offers high resistance to abrasion and flatspots while maintaining consistent speed and performance, while the Anti-Stick Slide System ensures smooth, controlled slides.
Available in different sizes, with diameter, width and contact patch varying according to the selected size. Choose Spitfire Lock-Ins 99A for dependable performance and a shape designed for technical skateboarding.
Technical Features
- Spitfire Formula Four urethane
- 99A hardness
- Asymmetric Lock-Ins shape
- Straight inner edge
- Sculpted conical outer profile
- Anti-Stick Slide System
- High abrasion resistance
- High flatspot resistance
- Set of 4 wheels
Our picks
Primitive Team Wheels 53mm 100A
Spitfire Wheels Radials Grant Taylor Undead 99 A
Spitfire Classic Formula Four 99A
Spitfire Lock-ins Full Formula Four 99 A
Spitfire Lock-Ins Formula Four 101 A
Spitfire Tablets Formula Four 101 A
Spitfire Tablets Formula Four 99 A
Spitfire Conical Formula Four 101 A
Spitfire Conical Formula Four 99 A
Spitfire Conical Full Formula Four 99 A
Spitfire Conical Full Formula Four 97 A
