{"product_id":"os-speed-b21-adam-drake-4-engine-and-tb02-efra2089-and-mb01-75-combo-set-incl-p3","title":"OS SPEED-B21 ADAM DRAKE 4 Engine and TB02 EFRA2089 \u0026 MB01-75 Combo set. Incl P3","description":"\u003cdiv class=\"tab-pane active\" id=\"tab-description\"\u003e\n\u003ch5\u003eO.S. Engines would like to introduce new O.S.SPEED B21 ADAM DRAKE 4. Latest collaboration engine with world famous O.S. Team driver Adam Drake. Cylinder liner, crankshaft, outer head has been redesigned to Adam Drake’s spec for better balance, more torque and more power for better driving performance.\u003c\/h5\u003e\r\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\r\n\u003ch5\u003eSpec---------------------------\u003cbr\u003eDisplacement： 3.49 cc \/ 0.213cu.in.\u003cbr\u003eBore: 16.4mm \/ 0.646 in.\u003cbr\u003eStroke: 16.55mm \/ 0.652 in.\u003cbr\u003eOutput :2.65 ps \/ 2.61 hp \/ 34,000 r.p.m.\u003cbr\u003ePractical RPM range: 4,000-42,000 r.p.m.\u003cbr\u003eEngine Weight:352g \/ 12.42 oz.\u003cbr\u003e\u003cbr\u003eStandard accessories---------------------------\u003cbr\u003eO.S. SPEED P3 glow plug\u003cbr\u003eReducer　6II (blue) AL2・Reducer　8mm (blue) AL\u003cbr\u003eExhaust seal ring\u003cbr\u003eDust cap set 3mm\/16mm\/18mm\u003c\/h5\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch4\u003eFeatures\u003c\/h4\u003e\r\n\u003cdiv class=\"box_1\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam3\/ad210.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eAdvice and testing was done by Roar Champion Adam Drake.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/h6\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"box_2\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam4\/img2.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eNewly designed cylinder liner uses 3 port design. Changing the exhaust dimension for more torque.\u003c\/h6\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"box_3\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam4\/img1.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eChanged crankshaft’s inner diameter for better response in low to middle range.\u003cbr\u003e\u003cbr\u003e\n\u003c\/h6\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"box_1\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam4\/head.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eNew outer head has double anodized black and blue with new laser design and at same time lighter and better balance compared to the previous model.\u003c\/h6\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"box_2\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam4\/inner.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eInner head’s combustion chamber has been redesigned combustion efficiency has been improved, resulting in more torque.\u003c\/h6\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"box_3\"\u003e\n\u003cimg style=\"width: 100%;\" src=\"https:\/\/www.os-engines.co.jp\/osspeed\/img\/off\/adam4\/img8.jpg\" width=\"100%\"\u003e\r\n\u003ch6\u003eComes with φ6II and φ8 blue anodized reducers\u003cbr\u003e\u003cbr\u003e\n\u003c\/h6\u003e\r\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"OS Engines","offers":[{"title":"Hamilton Warehouse","offer_id":67728067493993,"sku":"1FH01","price":901.91,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/7171\/files\/1FH01-06-800x800_TUD8NM20UPSU.jpg?v=1792462108","url":"https:\/\/www.thehobbywarehouse.co.nz\/products\/os-speed-b21-adam-drake-4-engine-and-tb02-efra2089-and-mb01-75-combo-set-incl-p3","provider":"The Hobby Warehouse Ltd","version":"1.0","type":"link"}