{"id":69324,"date":"2026-05-09T05:32:58","date_gmt":"2026-05-09T03:32:58","guid":{"rendered":"https:\/\/stage6-racing.com\/produkt\/cylinder-stage6-70cc-sport-pro-mk2-minarelli-vertical-yamaha-bws-slider\/"},"modified":"2026-05-08T05:32:32","modified_gmt":"2026-05-08T03:32:32","slug":"cylinder-kit-stage6-70cc-sport-pro-mk2-minarelli-vertical","status":"publish","type":"product","link":"https:\/\/stage6-racing.com\/en\/product\/cylinder-kit-stage6-70cc-sport-pro-mk2-minarelli-vertical\/","title":{"rendered":"Cylinder Kit Stage6 70cc Sport Pro MK2 Minarelli vertical"},"content":{"rendered":"<h2>Stage6 cylinder kit Sport Pro MK 2 70cc<\/h2>\n<p><strong>Stage6 Cylinder Kit 70cc Sport MK2 10mm piston pin Minarelli vertical<\/strong> (Yamaha BW&#8217;s \/ Slider &#8211; MBK Booster \/ Stunt). The first generation Sport MK1 cylinders became very popular among scooter tuners, then Stage6 took things to the next level and introduced the successor, the Sport MKII.<\/p>\n<p>For 50cc scooters with Minarelli vertical engine such as MBK Booster \/ Stunt or Yamaha BW&#8217;s \/ Slider.<\/p>\n<h3>Design Stage6 MK2 cylinder<\/h3>\n<p>The cylinder was <strong>completely redesigned<\/strong>; 6 instead of 5 transfer ports ensure <strong>optimized cylinder filling<\/strong>. The oval exhaust remained but was optimized as well. The appearance is based on the pentagonal shape of the R\/T cylinders. The head is a one-piece unit with cast scavenging canals for better heat dissipation. The piston is a replica of the R\/T piston, with a domed piston crown and 0.8 mm thick piston ring to optimise performance and improve <strong>thermal stability<\/strong>.<\/p>\n<h3>Performance 70cc cylinder MK2 from Stage6<\/h3>\n<p>The cylinder delivers 2 to 3 hp more power than the MK1, between <strong>12 hp<\/strong>, without any additional modifications and in combination with the corresponding components. <strong>Maximum performance<\/strong> and <strong>outstanding robustness<\/strong> &#8211; we are sure that this cylinder will set new standards in the tuning scene.<\/p>\n<p>We recommend using a reinforced crankshaft, a min. 19mm carburetor and a sport \/ racing exhaust to exploit the full power of this tuning cylinder.<\/p>\n<h3>Installation tips for Stage6 cylinders<\/h3>\n<p>We recommend to clean the engine before assembly, check the condition of all components and use a new spark plug and new small end bearing. Do not forget to change your carburetor settings if necessary.<\/p>\n<p>Squish clearance should be between 0.75 and 0.85. The cylinder should be run in for approx. 300 km with a 1:33 mixture to improve robustness and life expectancy.<\/p>\n<p><em>Attention: <\/em>Original exhausts cannot be mounted with this cylinder.<\/p>\n<p>WITHOUT HOMOLOGATION (in some countries)<\/p>\n<h4>Scope of delivery Stage6 cylinder MK2<\/h4>\n<ul>\n<li>Aluminium cylinder, 47.6mm bore<\/li>\n<li>1-ring piston with 10mm piston pin<\/li>\n<li>One-piece cylinder head<\/li>\n<li>Gasket set<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Stage6 cylinder kit Sport Pro MK 2 70cc Stage6 Cylinder Kit 70cc Sport MK2 10mm piston pin Minarelli vertical (Yamaha BW&#8217;s \/ Slider &#8211; MBK Booster \/ Stunt). The first generation Sport MK1 cylinders became very popular among scooter tuners, then Stage6 took things to the next level and introduced the successor, the Sport MKII.&hellip;<\/p>\n","protected":false},"featured_media":110793,"template":"","meta":[],"product_brand":[],"product_cat":[8272],"product_tag":[8265],"class_list":{"0":"post-69324","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-cylinder","7":"product_tag-scooter","8":"pa_ausfuehrung-cylinder-kit","9":"pa_farbe-variante-sport-pro","10":"pa_marke-10-mm","11":"pa_produkt-familie-stage6","12":"pa_strassenzulassung-70cc","13":"pa_tuningbereich-sport","14":"description-off","16":"first","17":"instock","18":"product-type-external"},"_links":{"self":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product\/69324","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:featuredmedia":[{"embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/media\/110793"}],"wp:attachment":[{"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/media?parent=69324"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_brand?post=69324"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_cat?post=69324"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/stage6-racing.com\/en\/wp-json\/wp\/v2\/product_tag?post=69324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}