{"product_id":"reds-321-engine-set-estremo-worlds-edition-16-2143-oxd-pipe","title":"Reds 321 Engine Set Estremo Worlds Edition 16% + 2143 Oxd Pipe","description":"\u003cp\u003eFEATURES\u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003c\/p\u003e \u003cp\u003eThe 321 Estremo has been one of REDS Racing’s most successful engines of the 2026 racing season, competing at the highest international level and winning the 2026 EFRA 1\/8 Off-Road European Championship with Juan Carlos Canas Carrasco.\u003cbr\u003e\u003cbr\u003e  Building on this winning platform, the new Worlds Edition has been further developed to optimize performance, thermal management, reliability and consistency under the most demanding racing conditions.\u003cbr\u003e\u003cbr\u003e  WHAT'S NEW – WORLDS EDITION\u003cbr\u003e The engine features a special Worlds Edition cooling head, specifically designed to improve thermal management in high ambient temperatures and during long, demanding runs.\u003cbr\u003e\u003cbr\u003e  More stable operating temperatures help maintain consistent carburetion and engine performance throughout the run, while also improving reliability under extreme racing conditions.\u003cbr\u003e\u003cbr\u003e  The 321 Estremo Worlds Edition is paired with the exclusive 2143 XONE Worlds Edition exhaust featuring OXD surface treatment.\u003cbr\u003e\u003cbr\u003e  The OXD treatment provides increased protection against wear and deterioration caused by intensive use and high operating temperatures. In addition, it contributes to improved exhaust gas temperature management, helping increase engine performance, efficiency and consistency of the complete engine–exhaust system.\u003cbr\u003e\u003cbr\u003e  RECOMMENDED SETUP\u003cbr\u003e Exhaust: 2143 XONE Worlds Edition OXD\u003cbr\u003e Venturi: 6 mm Buggy \/ 7 mm Truggy\u003cbr\u003e Clutch: Tetra-X – 4 Aluminium Shoes – Medium Setup\u003cbr\u003e Glow Plug: REDS TS3\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u0026lt;Technical Specifications\u0026gt;\u003cbr\u003e\u003cbr\u003e  Category: 1\/8 Buggy and Truggy\u003cbr\u003e\u003cbr\u003e  Displacement: 3.5 cm³\u003cbr\u003e\u003cbr\u003e  Bore x Stroke: 16.4 × 16.4 mm\u003cbr\u003e\u003cbr\u003e  Ports: 3 intake, 1 exhaust\u003cbr\u003e\u003cbr\u003e  Front Bearing: 7×19×6 with high-performance seal\u003cbr\u003e\u003cbr\u003e  Rear Bearing: 14×25.4×6 – 9-ball high-durability ceramic bearing\u003cbr\u003e\u003cbr\u003e  Carburetor: OS 21J with Venturi XFlow\u003cbr\u003e\u003cbr\u003e  Venturi Diameter: 7 mm (optional: 6 mm or 8 mm – body 9 mm)\u003cbr\u003e\u003cbr\u003e  Backplate: AirBoost™ DLC-coated\u003cbr\u003e\u003cbr\u003e  Crankshaft: DLC-coated with two tungsten balancing weights\u003cbr\u003e\u003cbr\u003e  Weight: 345 g\u003cbr\u003e\u003cbr\u003e  Recommended Fuel: 16–30% nitro with 8–10% oil\u003cbr\u003e\u003cbr\u003e  Glow Plug: REDS TS3 or TS4\u003cbr\u003e\u003cbr\u003e  Exhaust System: 2143 X-ONE X Line\u003cbr\u003e\u003cbr\u003e  Clutch: REDS TETRA-X\u003c\/p\u003e \u003cbr\u003e","brand":"Reds","offers":[{"title":"Default Title","offer_id":61597825073486,"sku":"KYO-REDCOBU0040","price":506.89,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/1741\/0894\/files\/910c661a-eeed-4622-8a4c-d60e6837ceeb.jpg?v=1794223425","url":"https:\/\/www.makeitbuildit.co.uk\/products\/reds-321-engine-set-estremo-worlds-edition-16-2143-oxd-pipe","provider":"Make It Build It","version":"1.0","type":"link"}