{"id":99593,"date":"2025-06-10T08:58:14","date_gmt":"2025-06-10T15:58:14","guid":{"rendered":"https:\/\/dirtbikemagazine.com\/?p=99593"},"modified":"2025-06-10T09:12:21","modified_gmt":"2025-06-10T16:12:21","slug":"beta-announces-a-350cc-two-stroke","status":"publish","type":"post","link":"https:\/\/dirtbikemagazine.com\/beta-announces-a-350cc-two-stroke\/","title":{"rendered":"BETA ANNOUNCES A 350cc TWO STROKE!","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h2>2026 BETA 350RX TWO STROKE<\/h2>\n<p>The masses have been asking for it and Beta is the first manufacture to deliver the 350cc Two-Stroke !<\/p>\n<p><iframe loading=\"lazy\" title=\"ALL NEW BETA 350cc TWO STROKE! 2026 BETA 350RX\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/aKzFJn19jUY?wmode=transparent&amp;rel=0&amp;feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/dirtbikemagazine.com\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><template data-arve_cachetime=\"2025-06-10T08:58:05-07:00\" data-arve_iframe_src=\"https:\/\/www.youtube.com\/embed\/aKzFJn19jUY?wmode=transparent&amp;rel=0&amp;feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/dirtbikemagazine.com\" data-arve_url=\"https:\/\/youtu.be\/aKzFJn19jUY\" data-author_name=\"Dirtbike Magazine\" data-author_url=\"https:\/\/www.youtube.com\/@DirtBikeMagazine\" data-height=\"658\" data-provider=\"youtube\" data-provider_name=\"YouTube\" data-provider_url=\"https:\/\/www.youtube.com\/\" data-thumbnail_height=\"360\" data-thumbnail_url=\"https:\/\/i.ytimg.com\/vi\/aKzFJn19jUY\/hqdefault.jpg\" data-thumbnail_width=\"480\" data-title=\"ALL NEW BETA 350cc TWO STROKE! 2026 BETA 350RX\" data-type=\"video\" data-version=\"1.0\" data-width=\"1170\" class=\"arve-data\"><\/template><\/p>\n<p>Beta has added two new motocross models to join the big brother 450 in the RX range. All-new 250 and 350 RX 2 strokes are the new bosses in town! Beta\u2019s 450 RX has been racing on the world MXGP tour for four years and the AMA USA Supercross series for two and has proven to be a serious contender. The Italian Beta engineers decided to \u201cGo Big\u201d for 2026 and add not only a 250 cc bike to race in the proper classes but also added a 350 RX smoker as well for everyone else! All Beta MX models are designed with the trademark RideAbility in mind. A motorcycle that is overall easier to ride.<\/p><div class=\"dirtb-content\" style=\"margin-top: 5px;margin-bottom: 5px;\" id=\"dirtb-1986778120\"><!-- \/1395056\/DB-in-article -->\r\n<div id='div-gpt-ad-1492023269505-0'>\r\n<script>\r\ngoogletag.cmd.push(function() {\r\ngoogletag.display('div-gpt-ad-1492023269505-0'); }); <\/script> <\/div>\r\n<\/div>\n<p>350 RX: All new for 2026, this new model replaces the 300 version for the 2026 season. New engine cases, bore and stroke, as well as a twin-plug head to ignite the special power only a big-bore 2-stroke can provide. The longer crankshaft, combined with the final gearing ratio of 13\/47, provides a large amount of torque and overall horsepower that will turn some heads. This new 350 motocrosser will thrive in many different track conditions. Clearly in a class of its own!<\/p>\n<p><strong><u>250-350 RX 2 Stroke Overview<\/u><\/strong><\/p>\n<p>Engine: Both engine capacities received a completely new, purpose-built engine. The 350 RX was designed to obtain the greatest linear power delivery and give riders the option to exploit the great power available when needed, while the 250 RX can count on explosive performance, ready to compete in races under all conditions.<\/p>\n<p>\u00bb Head: The first noticeable difference when looking at the new engines is certainly the dual-spark-plug head on the RX 350 2Str, while the 250cc still relies on a classic single spark plug. This differentiates the two motorcycles\u2019 character even further, with the 250cc providing riders with a high-revving engine that competes with the likes of 250 4Str bikes, while the 350cc manages to keep a greater torque and rounded delivery, enhancing its ease of recreational use, at lower speeds while still provides enough overall horsepower for race use.<\/p><div class=\"dirtb-content-1\" style=\"margin-top: 5px;margin-bottom: 5px;\" id=\"dirtb-2929295618\"><!-- \/1395056\/DB-in-article-2 -->\r\n<div id='div-gpt-ad-1496773552733-0'>\r\n<script>\r\ngoogletag.cmd.push(function() { googletag.display('div-gpt-ad-1496773552733-0'); });\r\n<\/script>\r\n<\/div><\/div>\n<p>\u00bb Cylinder, piston, and power valve: to further differentiate the two bikes, apart from the obvious engine capacity, Betamotor engineers worked on new cylinders and pistons, designed specifically for each engine. The power valve, too, was calibrated accurately to manage the two deliveries by adopting different springs.<\/p>\n<p>\u00bb Crankshaft: the two motorcycles have a different stroke, with the 250cc reaching 72mm and the 350cc reaching 73.6mm.<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>BETA has a big announcement and we have all the information here! <\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":99594,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25,19,11,12,3,2,411,26],"tags":[32],"class_list":["post-99593","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-features","category-home-page-carousel","category-home-features","category-home-news","category-industry-news","category-news","category-two-stroke","category-video","tag-beta"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.3.1 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>BETA ANNOUNCES A 350cc TWO STROKE! 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