{"id":69452,"date":"2026-06-06T05:35:38","date_gmt":"2026-06-06T03:35:38","guid":{"rendered":"https:\/\/stage6-racing.com\/produkt\/reed-valve-v-force-4-stage6-by-moto-tassinari-honda-cr85-derbi\/"},"modified":"2026-06-08T06:17:10","modified_gmt":"2026-06-08T04:17:10","slug":"reed-valve-v-force-4-stage6-honda-cr85-derbi","status":"publish","type":"product","link":"https:\/\/stage6-racing.com\/en\/product\/reed-valve-v-force-4-stage6-honda-cr85-derbi\/","title":{"rendered":"Reed Valve V-Force 4 Stage6 Honda CR85 \/ Derbi"},"content":{"rendered":"<h2><strong>V-Force 4 Reed Valve by Moto Tassinari from Stage6<\/strong><\/h2>\n<p>Tuning specialist <strong>Stage6<\/strong> has expanded its already extensive product catalog with another standout addition: the <strong>Stage6 V-Force 4 Reed Valve by Moto Tassinari<\/strong>, designed for CR85\/Derbi engines.<\/p>\n<p>Originally developed for the <strong>Motocross Honda CR 85<\/strong>, the V-Force 4 reed valve can also be installed on original <strong>Derbi Euro 2 \/ Euro 3 \/ Euro 4 engine cases<\/strong>. However, the crankcase must be slightly modified on both sides to accommodate the installation.<\/p>\n<h3><strong>Who is the V-Force 4 for?<\/strong><\/h3>\n<p>The <strong>V-Force 4 by Moto Tassinari<\/strong> is designed for ambitious tuners and motorsport enthusiasts looking to maximize the performance of their Derbi engine. With its high-end performance and meticulously engineered upgrades, this reed valve takes your machine to the next level.<\/p>\n<p>Compared to the <strong>V-Force 3<\/strong>, the V-Force 4 offers innovative features and enhancements that significantly boost the performance of your racing engine. Designed with a <strong>dual reed system<\/strong>, it delivers improved air-fuel flow, resulting in better torque, acceleration, and overall performance across the entire RPM range. While the V-Force 3 is already an excellent product, the new V-Force 4 sets an even higher standard, firmly positioning itself as a high-end option.<\/p>\n<h3><strong>Improvements and Benefits of the V-Force 4<\/strong><\/h3>\n<ul>\n<li><strong>Optimized reed petals:<\/strong> Pre-shaped petals provide better sealing and increased efficiency.<\/li>\n<li><strong>Enhanced carbon fiber construction:<\/strong> Improves durability and performance of the reed petals.<\/li>\n<li><strong>Larger airflow capacity:<\/strong> A wider reed cage and a 10.5% larger reed surface area for enhanced flow.<\/li>\n<li><strong>Flow-optimized layout:<\/strong> Boosts airflow speed and improves aerodynamic performance.<\/li>\n<li><strong>Extended lifespan:<\/strong> Longer stop plates reduce wear on reed petals.<\/li>\n<li><strong>Rubberized mounting surface:<\/strong> Minimizes stress on the reed petals for greater longevity.<\/li>\n<\/ul>\n<ul><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>V-Force 4 Reed Valve by Moto Tassinari from Stage6 Tuning specialist Stage6 has expanded its already extensive product catalog with another standout addition: the Stage6 V-Force 4 Reed Valve by Moto Tassinari, designed for CR85\/Derbi engines. Originally developed for the Motocross Honda CR 85, the V-Force 4 reed valve can also be installed on original&hellip;<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"product_brand":[],"product_cat":[8108],"product_tag":[8262],"class_list":{"0":"post-69452","1":"product","2":"type-product","3":"status-publish","5":"product_cat-carburetor-intake","6":"product_tag-50cc-bike-motorcycle","7":"pa_ausfuehrung-reed-valve","8":"pa_farbe-variante-v-force-4r","9":"pa_produkt-familie-stage6","10":"pa_tuningbereich-carbon","11":"description-off","13":"first","14":"instock","15":"product-type-external"},"_links":{"self":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product\/69452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/media?parent=69452"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_brand?post=69452"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_cat?post=69452"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_tag?post=69452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}