{"product_id":"reds-321-estremo-worlds-edition-16-engine-2143-x-one-oxd-pipe-combo","title":"REDS 321 Estremo Worlds Edition 16% Engine + 2143 X-One OXD Pipe Combo","description":"\u003cp\u003eFEATURES\u003c\/p\u003e\n\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\nBuilding 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\nWHAT'S NEW – WORLDS EDITION\u003cbr\u003e\nThe 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\nMore 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\nThe 321 Estremo Worlds Edition is paired with the exclusive 2143 XONE Worlds Edition exhaust featuring OXD surface treatment.\u003cbr\u003e\u003cbr\u003e\nThe 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\nRECOMMENDED SETUP\u003cbr\u003e\nExhaust: 2143 XONE Worlds Edition OXD\u003cbr\u003e\nVenturi: 6 mm Buggy \/ 7 mm Truggy\u003cbr\u003e\nClutch: Tetra-X – 4 Aluminium Shoes – Medium Setup\u003cbr\u003e\nGlow Plug: REDS TS3\u003cbr\u003e\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eCategory: 1\/8 Buggy and Truggy\u003cbr\u003e\nDisplacement: 3.5 cm³\u003cbr\u003e\nBore x Stroke: 16.4 × 16.4 mm\u003cbr\u003e\nPorts: 3 intake, 1 exhaust\u003cbr\u003e\nFront Bearing: 7×19×6 with high-performance seal\u003cbr\u003e\nRear Bearing: 14×25.4×6 – 9-ball high-durability ceramic bearing\u003cbr\u003e\nCarburetor: OS 21J with Venturi XFlow\u003cbr\u003e\nVenturi Diameter: 7 mm (optional: 6 mm or 8 mm – body 9 mm)\u003cbr\u003e\nBackplate: AirBoost™ DLC-coated\u003cbr\u003e\nCrankshaft: DLC-coated with two tungsten balancing weights\u003cbr\u003e\nWeight: 345 g\u003cbr\u003e\nRecommended Fuel: 16–30% nitro with 8–10% oil\u003cbr\u003e\nGlow Plug: REDS TS3 or TS4\u003cbr\u003e\nExhaust System: 2143 X-ONE X Line\u003cbr\u003e\nClutch: REDS TETRA-X\u003c\/p\u003e\n\u003cp\u003ePart number: REDCOBU0040\u003c\/p\u003e","brand":"REDS","offers":[{"title":"Default Title","offer_id":56564558135675,"sku":"REDCOBU0040","price":518.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4467\/files\/REDCOBU0040-1.jpg?v=1793879826","url":"https:\/\/rcpitbox.com\/products\/reds-321-estremo-worlds-edition-16-engine-2143-x-one-oxd-pipe-combo","provider":"rcpitbox","version":"1.0","type":"link"}