{"product_id":"spitfire-lock-ins-formula-four-99-a","title":"Spitfire Lock-Ins Formula Four 99 A","description":"\u003cp\u003eSpitfire Formula Four Lock-Ins 99A skateboard wheels combine Formula Four urethane with the distinctive Lock-Ins shape, featuring an asymmetric profile that differentiates the inner and outer sides.\u003c\/p\u003e\u003cp\u003eThe straight inner edge provides a defined contact surface on curbs and rails. The outer side features a sculpted conical profile that creates the signature Lock-Ins geometry while reducing material where it is not needed.\u003c\/p\u003e\u003cp\u003eThe 99A hardness delivers a precise, controlled response. Formula Four urethane offers high resistance to abrasion and flatspots while maintaining consistent speed and performance, while the Anti-Stick Slide System supports smooth, controlled slides.\u003c\/p\u003e\u003cp\u003eAvailable in multiple sizes, with diameter, width and contact patch varying according to the selected option; the asymmetric Lock-Ins shape, 99A hardness and Formula Four urethane remain unchanged. Choose your ideal size and enjoy proven Spitfire performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSpitfire Formula Four urethane\u003c\/li\u003e\u003cli\u003e99A hardness\u003c\/li\u003e\u003cli\u003eAsymmetric Lock-Ins shape\u003c\/li\u003e\u003cli\u003eStraight inner edge\u003c\/li\u003e\u003cli\u003eSculpted conical outer profile\u003c\/li\u003e\u003cli\u003eAnti-Stick Slide System\u003c\/li\u003e\u003cli\u003eHigh abrasion resistance\u003c\/li\u003e\u003cli\u003eHigh flatspot resistance\u003c\/li\u003e\u003cli\u003eSet of 4 wheels\u003c\/li\u003e\u003c\/ul\u003e","brand":"Spitfire","offers":[{"title":"52 MM","offer_id":57112371233092,"sku":"888560131682","price":74.0,"currency_code":"EUR","in_stock":true},{"title":"53 MM","offer_id":57112371265860,"sku":"888560131699","price":74.0,"currency_code":"EUR","in_stock":true},{"title":"55 MM","offer_id":57112371298628,"sku":"888560131705","price":74.0,"currency_code":"EUR","in_stock":false},{"title":"57 MM","offer_id":57112371364164,"sku":"888560280465","price":74.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/8986\/5796\/files\/spitfire_wheels_f4_99_lock_ins_natural_52mm.webp?v=1786898535","url":"https:\/\/www.pleasuresmilano.com\/en-en\/products\/spitfire-lock-ins-formula-four-99a-skateboard-wheels","provider":"Pleasures Milano Official","version":"1.0","type":"link"}