{"product_id":"spitfire-formula-four-una-trinity-conical-full-54mm-97d-wheels-black","title":"Spitfire Formula Four Una Trinity Conical Full 54mm 97D Wheels - Black","description":"\u003cp\u003eUna Farrar’s Trinity graphic is paired with black urethane, a 54mm diameter and 97D Formula Four construction. This is the Conical Full version of the Una pro wheel.\u003c\/p\u003e\u003cp\u003eSpitfire Formula Four urethane is designed for abrasion and flatspot resistance, with a controlled slide and lasting shape. The Conical Full profile has a wider riding surface and cut-in sidewalls, combining support with reduced sidewall bulk.\u003c\/p\u003e\u003cp\u003eSold as one complete set of four wheels. Bearings are sold separately. Check the selected diameter and hardness when comparing this model with other Formula Four shapes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Spitfire\u003c\/li\u003e\n\u003cli\u003eFormula: Formula Four\u003c\/li\u003e\n\u003cli\u003eShape: Conical Full\u003c\/li\u003e\n\u003cli\u003eDurometer: 97D\u003c\/li\u003e\n\u003cli\u003ePackage: four wheels\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spitfire","offers":[{"title":"Default Title","offer_id":67700049608840,"sku":"20SPI2894","price":52.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0368\/9876\/6984\/files\/INV-2026-04696-20SPI2894.jpg?v=1792445636","url":"https:\/\/parksideskateshop.com\/products\/spitfire-formula-four-una-trinity-conical-full-54mm-97d-wheels-black","provider":"Parkside Skateshop","version":"1.0","type":"link"}