{"id":147030,"date":"2025-09-08T09:23:46","date_gmt":"2025-09-08T08:23:46","guid":{"rendered":"https:\/\/www.speedfun.bike\/prodotto\/speedfun-furious-ultra-per-motori-specialized-3-1-turbo-levo-gen4\/"},"modified":"2026-07-15T07:12:44","modified_gmt":"2026-07-15T06:12:44","slug":"speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4","status":"publish","type":"product","link":"https:\/\/www.speedfun.bike\/en\/prodotto\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\/","title":{"rendered":"SpeedFun Furious Ultra for Specialized 3.1 motor (Turbo Levo gen4)"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;113426&#8243;]<\/p>\n<h2>What is the SpeedFun Furious Ultra e-bike tuning kit for Specialized 3.1 motors (Turbo Levo Gen 4)?<\/h2>\n<p><strong>The Furious Ultra tuning device for Specialized 3.1 motors (Turbo Levo Gen 4)<\/strong> is designed to electronically manipulate the rear wheel\u2019s rotational speed and to signal to the motor a speed that is always below 25 km\/h, thereby achieving a very high actual speed whilst the motor is active. The maximum speed limit will therefore be determined by the motor\u2019s power combined with the power generated by the rider\u2019s legs (<a href=\"https:\/\/speedfun.bike\/wp-content\/uploads\/2019\/06\/ebike-non-va-a-50-kmh.pdf\">info<\/a>).<\/p>\n<p>When the tuning device is active, as it does not communicate with the display, it will show half the data on any display (or app) once a certain threshold is reached.<\/p>\n<p>This tuning kit is compatible with Specialized Turbo Levo (Gen 4) e-bikes fitted with the Specialized 3.1 motor and MasterMind T3.<\/p>\n<p>On Furious Evo Ultra devices, you can select the operating mode:<\/p>\n<ul>\n<li>Always active; cannot be deactivated<\/li>\n<li>Can be activated\/deactivated using the foot switch when the wheel is raised<\/li>\n<li>If tuning is active before the engine is switched off, it will remain active after restarting<\/li>\n<li>If tuning is active before the engine is switched off, it will be deactivated after restarting<\/li>\n<li>Tuning can be activated\/deactivated using an external button (not included in the kit)<\/li>\n<\/ul>\n<p>For further information, please refer to the instructions on the page<\/p>\n<p>The device is supplied as a plug-and-play unit, ready for use. It is very easy to install thanks to the compatible connectors, which mean no physical modifications to the e-bike are required.<\/p>\n<p><strong>WARNING!<\/strong><\/p>\n<p>This device is not compatible with Specialized Gen1, Gen2 or Gen3 e-bikes equipped with TCU01 (blue LED), TCU01 (Mastermind) or TCD.<br \/>\nThis device is not compatible with Specialized e-bikes equipped with a motor-controlled electronic gear system.<\/p>\n<p>&nbsp;<\/p>\n<h2>Ebike with a Specialized 3.1 motor, on which the Furious Ultra device has been successfully installed<\/h2>\n<p>(this list is illustrative and not exhaustive)[\/vc_column_text][vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_column_text uncode_shortcode_id=&#8221;133633&#8243;]<\/p>\n<p>&#8211; Specialized S-Works Turbo Levo 4 LTD<br \/>\n&#8211; Specialized S-Works Turbo Levo 4<br \/>\n&#8211; Specialized Turbo Levo 4 Pro<br \/>\n&#8211; Specialized Turbo Levo 4 Expert<\/p>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_column_text uncode_shortcode_id=&#8221;195461&#8243;]<\/p>\n<p>&#8211; Specialized Turbo Levo 4 Comp<br \/>\n&#8211; Specialized Turbo Levo 4 Comp Alloy<br \/>\n&#8211; Specialized Turbo Levo 4 Alloy<\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;225092&#8243;]<\/p>\n<h2>Installation instructions and user manuals<\/h2>\n<p>\n[\/vc_column_text][vc_button button_color=&#8221;color-210407&#8243; size=&#8221;btn-lg&#8221; radius=&#8221;btn-round&#8221; border_animation=&#8221;btn-ripple-out&#8221; border_width=&#8221;0&#8243; display=&#8221;inline&#8221; inline_mobile=&#8221;yes&#8221; link=&#8221;url:https%3A%2F%2Fwww.speedfun.bike%2Frichiesta-assistenza%2Fistruzioni-speedfun-furious-ultra-per-motori-specialized-3-1%2F|&#8221; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;159364&#8243; icon=&#8221;fa fa-file-o&#8221;]INSTRUCTIONS AND USER MANUALS[\/vc_button][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;50&#8243; back_color=&#8221;color-jevc&#8221; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;164673&#8243; back_color_type=&#8221;uncode-palette&#8221;][vc_column width=&#8221;1\/1&#8243;][vc_gallery el_id=&#8221;gallery-182448&#8243; type=&#8221;carousel&#8221; medias=&#8221;144816,144819&#8243; carousel_lg=&#8221;2&#8243; carousel_md=&#8221;2&#8243; carousel_sm=&#8221;1&#8243; gutter_size=&#8221;3&#8243; carousel_interval=&#8221;3000&#8243; carousel_navspeed=&#8221;400&#8243; stage_padding=&#8221;0&#8243; single_overlay_opacity=&#8221;50&#8243; single_padding=&#8221;2&#8243; uncode_shortcode_id=&#8221;312569&#8243;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>SpeedFun Furious Ultra is an e-bike tuning kit that allows you to remove the 25 km\/h speed limit, enabling you to fully exploit the potential of the Specialized 3.1 motor.<\/p>\n<p>This speed unlocking device is specifically designed for Specialized Turbo Levo Gen 4 e-bikes fitted with a Specialized 3.1 motor and a MasterMind T3 display.<\/p>\n<p>All SpeedFun Furious Ultra speed unlock devices can be switched on and off as required.<\/p>\n","protected":false},"featured_media":146850,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[125,271],"product_tag":[],"class_list":["post-147030","product","type-product","status-publish","has-post-thumbnail","product_cat-for-specialized-2-en","product_cat-furious-en","product_shipping_class-armadi-en","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Furious Ultra Specialized Levo 4 (gen4) - SpeedFun ebike tuning<\/title>\n<meta name=\"description\" content=\"SpeedFun Furious Ultra is a tuning kit for Specialized Levo 4 e-bikes fitted with a 3.1 motor. This kit allows you to increase the motor assistance to over 60 km\/h.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.speedfun.bike\/en\/prodotto\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Furious Ultra Specialized Levo 4 (gen4) - SpeedFun ebike tuning\" \/>\n<meta property=\"og:description\" content=\"SpeedFun Furious Ultra is a tuning kit for Specialized Levo 4 e-bikes fitted with a 3.1 motor. This kit allows you to increase the motor assistance to over 60 km\/h.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.speedfun.bike\/en\/prodotto\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\/\" \/>\n<meta property=\"og:site_name\" content=\"Speed Fun\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-15T06:12:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.speedfun.bike\/wp-content\/uploads\/2026\/05\/SpeedFun-ebike-tuning-Specialized-3.1-Turbo-Levo-4_product_1resized_new-scaled.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2049\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.speedfun.bike\\\/en\\\/prodotto\\\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\\\/\",\"url\":\"https:\\\/\\\/www.speedfun.bike\\\/en\\\/prodotto\\\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\\\/\",\"name\":\"Furious Ultra Specialized Levo 4 (gen4) - SpeedFun ebike tuning\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.speedfun.bike\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.speedfun.bike\\\/en\\\/prodotto\\\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.speedfun.bike\\\/en\\\/prodotto\\\/speedfun-furious-ultra-for-specialized-3-1-motor-turbo-levo-gen4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.speedfun.bike\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/SpeedFun-ebike-tuning-Specialized-3.1-Turbo-Levo-4_product_1resized_new-scaled.png\",\"datePublished\":\"2025-09-08T08:23:46+00:00\",\"dateModified\":\"2026-07-15T06:12:44+00:00\",\"description\":\"SpeedFun Furious Ultra is a tuning kit for Specialized Levo 4 e-bikes fitted with a 3.1 motor. 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