{"product_id":"os-o-s-speed-r21gt-ii","title":"Os O.S.Speed R21Gt Ii","description":"\u003cdiv class='\"hidden-tabs-name\"' data-tab-header='\"description\"'\u003eDescription\u003c\/div\u003e\u003cbr\u003e \u003cdiv class='\"description\"'\u003eWhile inheriting the smooth feeling and good fuel efficiency of the previous model O.S.SPEED R21GT, which was well received in the European market, the home of GT cars, the power feeling in the medium and low speed ranges has been improved by revising the counterbalance of the crankshaft. In addition, the newly designed inner head improves idling performance, and an inner head O-ring is used to reduce vibration and improve dust resistance. The outer head has been made lighter, and has evolved into the O.S.SPEED R21GT II with attention to the detail. We also have a combo set with TB01 (EFRA2042) tuned silencer and MB01-70 manifold.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cu\u003eSpecification\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003eDisplacement:： 3.49 cc \/ 0.213cu.in.\u003cbr\u003eBore: 16.08mm \/ 0.633 in.\u003cbr\u003eStroke: 17.20mm \/ 0.677 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\u003eWeight:362g \/ 12.77 oz.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStandard accessories\u003c\/strong\u003e\u003cbr\u003eGlow Plug RP7\u003cbr\u003eVenturi 7.0MM(RED)AL2\u003cbr\u003eVenturi 7.0MM(RED)AL2 Exhaust seal ring\u003cbr\u003eDust cap set(φ3、φ16、φ18)\u003c\/div\u003e","brand":"OS Engines","offers":[{"title":"Default Title","offer_id":59186571149646,"sku":"SCH-OS1DT00","price":329.29,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/1741\/0894\/files\/7b9df61d-9dff-4bfb-8c17-0126bd5abd64.jpg?v=1773668670","url":"https:\/\/www.makeitbuildit.co.uk\/products\/os-o-s-speed-r21gt-ii","provider":"Make It Build It","version":"1.0","type":"link"}