{"product_id":"o-s-speed-21-engine-r21-euro-ii-1-1dr00","title":"OS Speed ​​.21 Engine R21 \"EURO\" II (1) - 1DR00","description":"\u003cp data-start=\"2670\" data-end=\"3117\"\u003eThe \u003cstrong data-start=\"2674\" data-end=\"2702\"\u003eO.S. Speed R21 “EURO” II\u003c\/strong\u003e is a premium \u003cstrong data-start=\"2716\" data-end=\"2759\"\u003e3.5cc (.21) nitro on-road racing engine\u003c\/strong\u003e designed for 1\/8 competition cars and demanding racers who want precise power delivery and consistent performance over every run. Based on the proven R21 platform, the \u003cstrong data-start=\"2928\" data-end=\"2957\"\u003ecrankshaft counterbalance\u003c\/strong\u003e has been refined to improve \u003cstrong data-start=\"2986\" data-end=\"3020\"\u003elow and mid-range power output\u003c\/strong\u003e, delivering a smoother and more controllable driving feel. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3119\" data-end=\"3402\"\u003eThis results in strong corner-exit drive, reliable throttle response and clean RPM behavior—ideal for technical tracks where traction and controllable power matter most. The R21 EURO II is built for competitive racing and delivers the performance and quality O.S. Speed is known for.\u003c\/p\u003e\n\u003cp data-start=\"3404\" data-end=\"3510\"\u003eNote: Engine only. Exhaust system and manifold are typically sold separately depending on the version\/set.\u003c\/p\u003e\n\u003chr data-start=\"3512\" data-end=\"3515\"\u003e\n\u003ch3 data-start=\"3517\" data-end=\"3533\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"3536\" data-end=\"3602\"\u003eHigh-performance 3.5cc (.21) nitro on-road engine for 1\/8 racing\u003c\/li\u003e\n\u003cli data-start=\"3605\" data-end=\"3660\"\u003eEURO II update with revised crankshaft counterbalance\u003c\/li\u003e\n\u003cli data-start=\"3663\" data-end=\"3712\"\u003eImproved low\/mid power for consistent lap times\u003c\/li\u003e\n\u003cli data-start=\"3715\" data-end=\"3774\"\u003eSmooth, controllable throttle response and power delivery\u003c\/li\u003e\n\u003cli data-start=\"3777\" data-end=\"3815\"\u003eDesigned for serious competition use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3817\" data-end=\"3820\"\u003e\n\u003ch3 data-start=\"3822\" data-end=\"3838\"\u003eBox Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"3841\" data-end=\"3880\"\u003eO.S. Speed R21 “EURO” II engine (1DR00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3882\" data-end=\"3885\"\u003e\n\u003ch3 data-start=\"3887\" data-end=\"3906\"\u003eRequired to Run\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"3909\" data-end=\"3983\"\u003eSuitable 1\/8 on-road exhaust pipe and manifold (depending on your setup)\u003c\/li\u003e\n\u003cli data-start=\"3986\" data-end=\"4029\"\u003eAir filter \/ filter oil (track dependent)\u003c\/li\u003e\n\u003cli data-start=\"4032\" data-end=\"4068\"\u003eGlow plug suitable for your tuning\u003c\/li\u003e\n\u003cli data-start=\"4071\" data-end=\"4083\"\u003eNitro fuel\u003c\/li\u003e\n\u003cli data-start=\"4086\" data-end=\"4129\"\u003eStarter box or compatible starting system\u003c\/li\u003e\n\u003cli data-start=\"4132\" data-end=\"4171\"\u003eClutch and flywheel (chassis dependent)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"O.S.","offers":[{"title":"Default Title","offer_id":47738411417938,"sku":"1DR00","price":430.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0277\/3586\/files\/1DR00.jpg?v=1750930016","url":"https:\/\/checkout.rcxx.us\/en\/products\/o-s-speed-21-engine-r21-euro-ii-1-1dr00","provider":"RCXX - Shop for RC Models, DieCast \u0026 Plastic Models","version":"1.0","type":"link"}