{"product_id":"o-s-speed-r21-shimo-edition-3-combo-set-1fg01-tr03-efra2196-mr05","title":"O.S.SPEED R21 SHIMO EDITION 3 Combo Set (1FG01) TR03 EFRA2196 \u0026 MR05","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe \u003cstrong data-start=\"255\" data-end=\"307\"\u003eO.S. SPEED R21 SHIMO EDITION 3 Combo Set (1FG01)\u003c\/strong\u003e is a high-end \u003cstrong data-start=\"322\" data-end=\"365\"\u003e.21 on-road nitro racing engine package\u003c\/strong\u003e developed in collaboration with O.S. team driver \u003cstrong data-start=\"415\" data-end=\"432\"\u003eTakaaki Shimo\u003c\/strong\u003e. It features a tuned 3.49 cc engine with a \u003cstrong data-start=\"476\" data-end=\"530\"\u003e9-port cylinder liner and specially treated piston\u003c\/strong\u003e for \u003cstrong data-start=\"535\" data-end=\"578\"\u003elonger life and smoother power delivery\u003c\/strong\u003e. To improve drivability from low to top end, the combo includes the \u003cstrong data-start=\"647\" data-end=\"678\"\u003eTR03 EFRA2196 tuned exhaust\u003c\/strong\u003e and \u003cstrong data-start=\"683\" data-end=\"700\"\u003eMR05 manifold\u003c\/strong\u003e. The carburetor is fitted with a \u003cstrong data-start=\"734\" data-end=\"753\"\u003edust cover ring\u003c\/strong\u003e to reduce fuel leakage and stabilize idle performance. Visually, the engine has a striking deep gold head and premium finish, while internal upgrades like a ceramic rear bearing and “R” connecting rod from the R2106 improve reliability and performance for competitive on-road racing.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cstrong data-end=\"1040\" data-start=\"1031\"\u003eSpecifications\u003c\/strong\u003e\n\u003c\/h5\u003e\n\u003ch5\u003eDisplacement： 3.49 cc \/ 0.213cu.in.\u003cbr\u003eBore: 16.08mm \/ 0.633 in.\u003cbr\u003eStroke: 17.20mm \/ 0.677 in.\u003cbr\u003eOutput :2.80 ps \/ 2.76 hp \/ 35,000 r.p.m.\u003cbr\u003epractical rpm range: 4,000-45,000 r.p.m.\u003cbr\u003eEngine Weight:347g \/ 12.24 oz.\u003c\/h5\u003e\n\u003ch5\u003e\u003cstrong\u003eStandard accessories\u003c\/strong\u003e\u003c\/h5\u003e\n\u003ch5\u003e\n\u003cmeta charset=\"utf-8\"\u003eGlow plug T-RP7\u003cbr\u003eReducer φ8.5\u003cbr\u003eExhaust seal ring\u003cbr\u003eDust cap set 12-30(φ3、φ16、φ18)\u003c\/h5\u003e","brand":"O.S.Speed","offers":[{"title":"Default Title","offer_id":46091741495436,"sku":"OSM-R2106","price":428.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/2363\/3292\/files\/O.S.SPEEDR21SHIMOEDITION3ComboSet_1FG01_TR03EFRA2196_MR05.jpg?v=1769841017","url":"https:\/\/speedbull.net\/es\/products\/o-s-speed-r21-shimo-edition-3-combo-set-1fg01-tr03-efra2196-mr05","provider":"SPEEDBULL Rc","version":"1.0","type":"link"}