{"product_id":"spitfire-formula-four-conical-full-black-54mm-99d-set-of-4","title":"SPITFIRE FORMULA FOUR CONICAL FULL BLACK 54MM 99D (Set of 4)","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eSpitfire Formula Four Conical Full Black 54mm 99D — Set of 4\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAll black, all Formula Four. The Conical Full in 54mm 99D is the most versatile setup in the F4 lineup — slightly softer than the 101D for more grip on imperfect surfaces, a touch bigger for extra roll speed, and blacked out for a clean, unified look on any setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eDesigned with a wider riding surface and cutaway, the Conical Full delivers unmatched control and lasting speed — with more traction and stability at high speed so you'll be less likely to slip out of your line. Built with Spitfire's Formula Four compound for unmatched abrasion resistance — fewer flat spots, more controllable grip, lasting speed no matter the terrain, and a smooth anti-slick slide with a longer lasting size and shape. At 99D, these handle rougher pavement better than the 101D while still being plenty hard for technical skating — making them the go-to for street skaters who aren't always on perfect concrete. 54mm adds just enough diameter for carry speed between tricks without going too big. Sold as a set of 4.\u003cspan class=\"inline-flex\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDiameter: 54mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWidth: 34mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRiding Surface: 22mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDurometer: 99D\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eShape: Conical Full\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eProfile: Wide\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSurface: Smooth\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eColor: Black\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eUrethane: Formula Four\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSold as a set of 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePick up a set at \u003cstrong\u003eStamford Skate Shop\u003c\/strong\u003e — Stamford, CT's local skate shop for Spitfire Formula Four wheels, decks, trucks, and everything you need to get rolling. In-store and online.\u003c\/p\u003e","brand":"Stamford Skate Shop","offers":[{"title":"Default Title","offer_id":46124377178248,"sku":null,"price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/7825\/3960\/files\/Screenshot2026-06-18at4.33.30PM.png?v=1781814836","url":"https:\/\/stamfordskateshop.com\/products\/spitfire-formula-four-conical-full-black-54mm-99d-set-of-4","provider":"Stamford Skate Shop","version":"1.0","type":"link"}