Spitfire Formula Four 99D 52mm Conical Full Skateboard Wheels - 52 mm Diameter And 99D Urethane For Street And Park

Spitfire Formula Four 99D 52mm Conical Full Skateboard Wheels target skaters who want a 52 mm wheel with a 99D durometer and a wider contact patch for control on rougher streets and in skateparks. The Formula Four line bundles these 52 mm 99D Conical Full wheels as a four-wheel set built around Spitfire's own urethane mix, with a geometry tuned for grip and slide on concrete and composite park surfaces.

Formula Four Design And Core Specs

The Formula Four family sits at the center of Spitfire's wheel catalog, with the 99D 52 mm Conical Full version positioned as a mid-size street and park wheel that balances acceleration, slide and stability. The Formula Four overview on Spitfire's site lists multiple shapes and hardness options, and the geometry table for Conical style wheels shows a 52 mm diameter, around 31.5 mm width and a 20.0 mm riding surface for 99D wheels in that size, giving a broad contact patch compared with thinner street wheels.Spitfire's Formula Four geometry table From a rider's perspective, that 20 mm riding surface means more wheel touching the ground during landings and slides, helping tricks feel more planted while still allowing controlled powerslides and reverts.

A trade press product listing summarizing the 52 mm Conical Full 99D model as part of the Formula Four catalog describes the wheel set with a 52 mm diameter, approximately 32 mm width and a 20 mm riding surface, confirming the broader footprint relative to narrower tablet or classic shapes in the same urethane family.An editorial spec summary Spitfire builds these wheels from its Formula Four urethane, described in retailer copy as a high-rebound urethane engineered to resist flatspots while maintaining speed and grip across repeated slide tricks and rough ground.A retailer description of Formula Four urethane

Brand Background And Manufacturing

Spitfire Wheels traces back to 1987, when Jim Thiebaud and Fausto Vitello founded the brand within the Deluxe Distribution network in San Francisco, California, positioning it alongside Real, Anti Hero, Thunder and Venture as part of a focused skate hardware group.An overview of Deluxe Distribution and Spitfire Deluxe Distribution continues to run Spitfire as a wheel brand, with descriptions in industry profiles noting that the company concentrates specifically on skateboard wheels, bearings and accessories under the Spitfire label rather than branching into boards or apparel as its primary product.

Retailers and brand profiles emphasize that Spitfire remains a San Francisco based wheel specialist, with trade and skate shop writeups describing the focus on long-lasting, ultra-fast wheels for both street and park skating, and highlighting the role of Formula Four urethane as Spitfire's flagship compound aimed at technical skaters who demand consistent slide response and resistance to flatspotting over long sessions.A retailer brand overview Within this portfolio, the 99D 52 mm Conical Full model slots in as one of several mid-size wheels, designed for riders who want more support than a narrow 51 mm street wheel but who still prefer a compact setup over larger 56 mm or 58 mm options that favor higher speeds.

Street And Park Use With 52 mm 99D Geometry

In practical use, a 52 mm diameter paired with a 99D urethane hardness sits squarely in the street and park range for modern skateboard setups. The 99D durometer, described in retailer literature as a 99A hardness, delivers a fast, responsive wheel that slides readily on concrete and metal coping while still providing enough grip for controlled carving and set-up turns across rough asphalt and cracked sidewalks.A geometry table for Formula Four Conical wheels The 32 mm class width and 20 mm riding surface give boards a stable feel during grinds, with more wheel volume under the truck than narrower shapes that cater strictly to technical flip tricks.

On the Formula Four page, Spitfire cross lists several shapes such as Classic, Conical, Conical Full, Tablets and Lock-Ins, with each shape carrying different width and riding surface figures at the same diameter.Spitfire's shape and size grid Compared with the thinner Tablet wheels, which feature a 52 mm diameter but a 29 mm width and 20 mm riding surface, the Conical Full shape shifts more urethane outward, giving riders more support at higher speeds and during locked-in grinds on thicker ledges and rails while preserving the same 52 mm height for rapid acceleration out of tricks.

Price Point And Position Against Alternatives

At US skate shops, the 52 mm Formula Four 99D wheels sit at the upper middle of the wheel price spectrum. A price comparison service tracking Spitfire wheel listings shows the F4 OG Classic 99D 52 mm at $48.00 as a lowest reference price, while listing the F4 Conical Full 99D 52 mm wheels around $47.95 at several retailers, putting the 52 mm Conical Full right under the Classic variant in terms of typical shelf price.A price comparison listing for Spitfire wheels An editorial product summary for Spitfire Formula Four 99D 52 mm wheels in Conical Full shape quotes a typical retail price of $48.95 for a four-wheel set in the US, which aligns with the price comparison numbers and places the wheels near the top of the mass-market wheel bracket without entering boutique or collector pricing.An editorial summary with US pricing

Against other Formula Four shapes, the 52 mm Conical Full 99D wheels trade a modest increase in price for the wider footprint and a more supportive feel. For example, a price comparison listing for Spitfire Formula Four Conical 99D 52 mm wheels shows a $39.99 price from a US skate shop, with the same 52 mm diameter and 99D hardness but a narrower 31.5 mm width and 19.5-20.0 mm riding surface.A comparison listing for Formula Four Conical wheels That roughly $8-9 difference between Conical and Conical Full versions reflects the Conical Full's positioning as a premium choice within Spitfire's mid-size urethane lineup, aimed at riders who want the added stability enough to justify the higher price.

Use Cases, Limits And Placement In The Wheel Market

Within the skateboard wheel segment, the Spitfire Formula Four 99D 52 mm Conical Full wheels occupy a clear role: they cater to street and park skaters who value consistent slide behavior and durability but do not want wheels so hard and large that rough streets become uncomfortable. The 99D hardness remains on the faster, more slide-oriented side of the spectrum compared with softer 97D options in the same family, yet it stops short of the fully rigid feel associated with harder park-only wheels, making these wheels workable both on indoor parks and outdoor ledge spots.Spitfire's duro and shape options The Conical Full profile and 20 mm riding surface reward riders who favor long feeble grinds, smith grinds and nose slides, as the extra urethane under the truck reduces the tendency to hang up or chatter over imperfect coping.

At the same time, the 52 mm diameter and high durometer impose some limits. Skaters who primarily ride very rough asphalt, cracked streets or crusty DIY spots may prefer slightly larger 54 mm or 56 mm wheels or softer 97D Formula Four compounds that buffer vibrations more effectively. In addition, anybody who spends more time cruising or commuting than skating ledges and rails would likely gravitate toward Spitfire's 80HD cruiser wheels or other soft compounds that prioritize comfort over slide characteristics.A brand feature noting 80HD and Formula Four options For their intended audience of street and park skaters, however, the Formula Four 99D 52 mm Conical Full wheels deliver a focused mix of speed, lock-in and resilience, placing them among the benchmark choices for riders building modern technical setups.