{"id":3697335,"date":"2026-09-30T10:37:22","date_gmt":"2026-09-30T08:37:22","guid":{"rendered":"https:\/\/webshop.lucdebondt.be\/?post_type=product&#038;p=3697335"},"modified":"2026-09-30T10:54:49","modified_gmt":"2026-09-30T08:54:49","slug":"cilinderkit-staal-72cc-6-volt","status":"publish","type":"product","link":"https:\/\/webshop.lucdebondt.be\/en\/product\/cilinderkit-staal-72cc-6-volt\/","title":{"rendered":"72cc steel cylinder kit    6 volts"},"content":{"rendered":"<p>Complete 72cc cylinder kit for 6-volt motorbike (  Honda ST50-70 \u2013 SS50 \u2013 CD50 \u2013 CF50-70   )<\/p>\n<p>Kit consisting of :<\/p>\n<ul>\n<li>steel cylinder 72cc with 49cc marking<\/li>\n<li>piston with piston rings<\/li>\n<li>piston pin<\/li>\n<li>2 x circlip<\/li>\n<\/ul>\n<p class=\"p1\"><b>W STANDARD Cylinder &amp; Piston Set<\/b><\/p>\n<h3><span class=\"s1\"><b>Product description<\/b><\/span><\/h3>\n<p class=\"p3\">This complete set consists of an air-cooled cylinder and piston for engine blocks. The cylinder is marked as <span class=\"s1\"><b>49cc<\/b><\/span><span class=\"s2\">, whilst the oversized bore ensures a <\/span><span class=\"s1\"><b>actual cylinder capacity of 72cc<\/b><\/span><span class=\"s2\">.<\/span><\/p>\n<p class=\"p3\">Suitable for modifying and upgrading various small horizontal engine blocks.<\/p>\n<p class=\"p3\">The complete set consists of a <span class=\"s1\"><b>cylinder, piston, piston rings, piston pin and retaining rings<\/b><\/span><span class=\"s2\"> and is ready for fitting.<\/span><\/p>\n<h3><span class=\"s1\"><b>Specifications<\/b><\/span><\/h3>\n<p class=\"p4\"><b>Cylinder mounting dimensions<\/b><\/p>\n<ul>\n<li><span class=\"s1\">Total length of upper flange: <\/span><span class=\"s2\"><b>48.5 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Flange width: <\/span><span class=\"s2\"><b>50.5 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Width of lower mounting point: <\/span><span class=\"s2\"><b>46.5 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Internal distance of the lower flange: <\/span><span class=\"s2\"><b>52.5 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Centre-to-centre distance: <\/span><span class=\"s2\"><b>47 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Total height of the cylinder cooling block: <\/span><span class=\"s2\"><b>88.5 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Height of cooling fins: <\/span><span class=\"s2\"><b>62.6 mm<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p4\"><b>Piston<\/b><\/p>\n<ul>\n<li><span class=\"s1\">Total piston height: <\/span><span class=\"s2\"><b>47.8 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Height of piston skirt: <\/span><span class=\"s2\"><b>47 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Distance from the top of the piston spring groove to the bottom of the piston: <\/span><span class=\"s2\"><b>24.2 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Length of the section with piston spring grooves: <\/span><span class=\"s2\"><b>20.1 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Compression piston rings: <\/span><span class=\"s2\"><b>2 pieces \u2013 groove width 1.2 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Oil-seal spring: <\/span><span class=\"s2\"><b>1 piece \u2013 groove width 2.5 mm<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p4\"><b>Piston pin &amp; retaining rings<\/b><\/p>\n<ul>\n<li><span class=\"s1\">Piston pin: <\/span><span class=\"s2\"><b>\u00d8 13 mm \u2013 length 38 mm<\/b><\/span><\/li>\n<li><span class=\"s1\">Circlips: <\/span><span class=\"s2\"><b>outer diameter 14.9 mm \u2013 thickness 1.0 mm<\/b><\/span><\/li>\n<\/ul>\n<h3><span class=\"s1\"><b>Features<\/b><\/span><\/h3>\n<p class=\"p5\">\u2705 Air-cooled cylinder with reinforced cooling fins for efficient heat dissipation.<br \/>\n\u2705 Precisely fitted piston with matching piston rings to ensure a good seal.<br \/>\n\u2705 Complete set including all the parts required for assembly.<br \/>\n\u2705 Upgrade from a standard model <span class=\"s1\"><b>49cc to 72cc<\/b><\/span><span class=\"s2\">, for a noticeable increase in power.<br \/>\n\u2705 Ideal for <\/span><span class=\"s1\"><b>mini motorbikes, pit bikes and other small horizontal engine blocks<\/b><\/span><span class=\"s2\">.<\/span><\/p>\n<p>Manufacturer : W\/standard<\/p>\n<p>English Product Description<br \/>\nProduct Name: W STANDARD Cylinder &amp; Piston Kit (Marked 49cc barrel, actual displacement 72cc)<br \/>\nProduct Overview<br \/>\nThis complete kit comprises an air-cooled motorcycle engine cylinder barrel and piston assembly. The cylinder barrel is marked as a 49cc specification, whilst the overbore design delivers an actual displacement of 72cc. It is suitable for modifying and upgrading a range of small horizontal engines.<br \/>\nThe complete set includes the cylinder barrel, piston, piston rings, piston pin and circlips, ready for immediate fitting.<br \/>\nSpecifications<br \/>\nCylinder Barrel Mount Dimensions<br \/>\nOverall length of top flange: 48.5 mm<br \/>\nFlange width: 50.5 mm<br \/>\nBottom mounting width: 46.5 mm; inner flange distance: 52.5 mm; centre distance: 47 mm<br \/>\nTotal height of the cylinder cooling body: 88.5 mm; fin height: 62.6 mm<br \/>\nPiston Parameters<br \/>\nTotal piston height: 47.8 mm<br \/>\nPiston skirt height: 47 mm<br \/>\nDistance from the top of the ring groove to the piston crown: 24.2 mm; length of the ring groove section: 20.1 mm<br \/>\nCompression ring grooves: 2, groove width 1.2 mm<br \/>\nOil ring groove: 1 piece, groove width 2.5 mm<br \/>\nPiston Pin &amp; Circlips<br \/>\nPiston pin: \u00d813 mm, length 38 mm<br \/>\nCirclip: outer diameter 14.9 mm, thickness 1.0 mm<br \/>\nFeatures<br \/>\n\u2705 Integrated cooling cylinder with reinforced cooling fins, ensuring stable heat dissipation during air-cooled operation<br \/>\n\u2705 High-precision piston paired with standard piston rings for excellent airtightness<br \/>\n\u2705 Complete accessory set; no additional separate parts required<br \/>\n\u2705 Upgrade directly from the standard 49cc engine to a 72cc displacement for a noticeable power boost. The ideal modification part for mini motorbikes and pit bikes.<\/p>","protected":false},"excerpt":{"rendered":"<p>72cc\/49 6V cylinder kit<\/p>","protected":false},"featured_media":3697336,"template":"","meta":[],"product_brand":[],"product_cat":[58],"product_tag":[708,709,707],"class_list":["post-3697335","product","type-product","status-publish","has-post-thumbnail","product_cat-cilinder-kits","product_tag-72cc","product_tag-cilinderkit","product_tag-kit","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"exclude_global_add_ons":[],"addons":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cilinderkit staal 72cc  6 volt - De Bondt<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/webshop.lucdebondt.be\/en\/product\/cilinderkit-staal-72cc-6-volt\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cilinderkit staal 72cc  6 volt - 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