Skateboard wheels engineered for more speed and control on rough terrain, aimed at street and park riders who push hard. Riders find greater confidence rolling over cracks and rough surfaces with Spitfire Formula Four Wheels. Are these the right wheels for those who demand durability and a fast, predictable roll?
⚡ At a Glance
- • Rolling Performance: 99DU Formula Four urethane and tablet shape create a hard, fast roll with a narrower contact patch
- • Best for: Skateboarders seeking speed and predictable control on rough streets and uneven surfaces
- • Not ideal for: Riders who prefer soft, shock-absorbing wheels for long-distance cruising
Formula Four urethane combines high abrasion and flatspot resistance with a tablet shape for speed. A straight-cut profile and thinner contact patch aid control on rough terrain.
Higher sustained speed - with 99DU Formula Four urethane
99DU denotes a hard urethane compound used in the Formula Four line, designed to resist deformation under load. The tablet shape, with a thinner contact patch, reduces surface contact for less rolling drag.
Harder compound and reduced contact area help maintain momentum over rough surfaces, so speed carries through cracks and rough patches more easily.
Longer life under heavy use - with high abrasion and flatspot resistance
The Formula Four compound is formulated for improved abrasion resistance, while specific compounding reduces tendencies to develop flatspots during slides and repeated braking.
Wheels retain roundness and usable surface area for longer, reducing the need for frequent replacements for riders who slide often.
Precise handling and quicker transitions - with tablet shape and straight-cut profile
A tablet, straight-cut profile produces a narrower contact patch compared with rounder profiles, concentrating grip and making edge-to-edge transitions more responsive.
Sharper turn initiation and more predictable slides make technical street moves and adjustments over uneven ground easier to control.
✨ The 4 Key Reasons for Spitfire Formula Four Wheels
- 99DU Urethane - Provides a fast, hard-rolling surface for consistent speed
- Tablet Shape - Thinner contact patch for quicker turn initiation and slides
- Flatspot Resistance - Keeps wheels round and predictable under frequent slides
- High Abrasion Formula - Lasts longer on rough streets with reduced visible wear
📋 Technical Details at a Glance
- Category: Skateboard wheels
- Brand: Spitfire
- Diameter: 54mm
- Durometer: 99DU
- Urethane Formula: Formula Four urethane
❓ Frequently Asked Questions
Q: Are these wheels suitable for rough terrain?
A: Yes. Descriptions highlight more speed and control on rough terrain, combined with high abrasion resistance and flatspot resistance for durability.
Q: What does the tablet shape do?
A: The tablet shape, described as having a straight-cut profile and a thinner contact patch, is designed for speed and sharper control during turns and slides.
Q: Who manufactures these wheels?
A: Spitfire manufactures the wheels; the company was founded in 1987 by Jim Thiebaud and also makes bearings, skateboard tools, griptape, soft goods, stickers and accessories.
🏆 Our Verdict
These wheels suit street and park riders who want a hard, fast roll and dependable control over uneven surfaces. The combination of Formula Four urethane, tablet shape and resistance to abrasion and flatspots is the core selling point. Durability and predictable behaviour make them a sensible long-term choice for aggressive skaters.
