Spitfire Formula Four - Lock Ins
Best versatile wheels for street and park skaters seeking reliable performance.
These wheels offer the perfect middle ground for skaters who want a predictable, locked-in feel on coping without sacrificing the slide-ability needed for technical street tricks. The high-performance urethane formula ensures they stay round and flat-spot resistant, even when you're pushing them hard on rough concrete.
$42.95
at
Theoryskate
More Formula 4 options
Who it's for
- Aggressive skaters tired of ruining wheels with flat spots
- Technical street skaters needing extra stability on ledges and rails
- Park riders demanding consistent speed and responsive performance
Who should skip it
- Budget-conscious skaters prioritizing affordability over premium performance
- Riders who prefer hassle-free, non-directional wheel setups
- Flip-trick specialists who prefer lightweight, slim-profile wheels
Performance breakdown
Flatspot Resistance
Formula Four urethane remains the industry gold standard for preventing flatspots.
Slide Predictability
Consistent release and hook-up points make power slides feel incredibly intuitive.
Lock-In Stability
The specialized shape creates a secure, locked-in feel on coping and rails.
Surface Grip
High-rebound compound provides reliable traction on smooth concrete and rough asphalt.
Durability
Slow wear rate ensures these wheels last through heavy daily sessions.
Versatility
The 99A durometer handles street ledges and park transitions with equal ease.
Key Specs
Size
54MM
Durometer
99 Duro
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