{"title":"ナックルヘッド \/ Knucklehead","description":null,"products":[{"product_id":"1-6-knucklehead_real-aging-engine-model","title":"1\/6 scale Knucklehead Real Aging Model","description":"\u003cp\u003e\u003cem\u003eThe engine that defined the chopper era — hand-aged to look like it’s been running since 1936.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Knucklehead. Harley-Davidson’s first overhead-valve V-twin, produced from 1936 to 1947. Named for the rocker boxes that look unmistakably like a pair of knuckles.\u003c\/p\u003e\n\n\u003cp\u003eThis 1\/6-scale replica is built by a single craftsman in Osaka, Japan — the same person who designs, prints, finishes, and ships every model. No factory. No assembly line.\u003c\/p\u003e\n\n\u003ch3\u003eAbout the Real Aging finish\u003c\/h3\u003e\n\u003cp\u003eThe Real Aging Edition takes the standard model further — each surface is individually weathered by hand to replicate decades of actual use. Oil stains, rust spots, paint chips, and metal wear are applied layer by layer using the same techniques as professional model builders and prop makers.\u003c\/p\u003e\n\u003cp\u003eNo two pieces are identical. The aging pattern on your model will be unique.\u003c\/p\u003e\n\n\u003ch3\u003eWhy collectors choose this model\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e35–40 hours of hand-finishing per model — sanding, priming, painting, aging\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution photopolymer resin (ELEGOO Mars \/ Saturn) — same process as dental and jewelry casting\u003c\/li\u003e\n  \u003cli\u003eCustom-blended resin formula for impact resistance — tougher than standard 3D prints\u003c\/li\u003e\n  \u003cli\u003eDisplay-ready: includes a custom base. No assembly required.\u003c\/li\u003e\n  \u003cli\u003eShips worldwide from Osaka, Japan — carefully packed for international transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eScale: 1\/6\u003c\/li\u003e\n  \u003cli\u003eMaterial: Custom-blended photopolymer resin + multi-layer urethane paint + hand-applied aging finish\u003c\/li\u003e\n  \u003cli\u003eMade in Osaka, Japan — handmade, one at a time\u003c\/li\u003e\n  \u003cli\u003eOnly a limited number produced each month\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor collectors who want it to look like it’s been on the road since before you were born.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/en\/collections\/selling\"\u003e← See all engine models\u003c\/a\u003e\u003c\/p\u003e","brand":"3dscalemodel","offers":[{"title":"Default Title","offer_id":43095875485755,"sku":null,"price":23800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9529\/5291\/files\/IMG_8057.jpg?v=1770480351"},{"product_id":"1-6_knucklehead-twothroat_engine-model","title":"1\/6 scale Knucklehead two-throat carburetor engine model","description":"\u003cdiv style=\"background: linear-gradient(135deg,#1e293b 0%,#334155 100%); padding: 35px 30px; margin: 0 0 30px 0; border-radius: 12px; text-align: center;\"\u003e\n\n\u003ch2 style=\"color:#f1f5f9;font-size:18px;font-weight:700;margin:0 0 8px 0;line-height:1.4;\"\u003e1936-1947 Knucklehead Engine\u003cbr\u003eTwo-Throat Carburetor Model 1\/6 Scale\u003c\/h2\u003e\n\n\u003cp style=\"color:#94a3b8;font-size:14px;margin:0;line-height:1.6;\"\u003eA rare custom Knucklehead specification pursuing maximum output with dual carburetors\u003c\/p\u003e\n\n\n\u003c\/div\u003e\u003cdiv style=\"background: #f8fafc; padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #e2e8f0;\"\u003e\u003cp style=\"font-size:14px;line-height:1.8;color:#334155;margin:0;\"\u003eThe specification with dual carburetors during the Knucklehead era was an advanced customization seeking maximum output at the time. The abundant air-fuel mixture produced by the two carburetors unleashes the full potential of the Knucklehead.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv style=\"background: linear-gradient(135deg,#fffbeb 0%,#fef3c7 100%); padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #fde68a;\"\u003e\n\n\u003ch3 style=\"color: #92400e; font-size: 17px; font-weight: bold; margin: 0 0 20px 0;\"\u003e🛠 About This Piece\u003c\/h3\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 14px;\"\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003e3D Data\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003eProduced based on 3D data purchased from an overseas website\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003e30-Hour Finish\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003ePolishing, 5-8 layers of paint, and hand-painted aging all done by one craftsman\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003eUnique Resin\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003eFinished to be more crack-resistant than usual. Includes a display stand, no assembly required.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cp style=\"font-size: 12px; color: #a16207; margin: 16px 0 0 0;\"\u003e▶ You can watch the production process in the video at the bottom of the product page.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\u003cdiv style=\"background: linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%); padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #bbf7d0;\"\u003e\n\n\u003ch3 style=\"color: #14532d; font-size: 17px; font-weight: bold; margin: 0 0 18px 0;\"\u003e✨ Recommended for\u003c\/h3\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 10px;\"\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose who love vintage American motorcycles\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose interested in engine structure and history\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose looking for authentic interior decor for their garage or office\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose looking for a gift for a motorcycle enthusiast\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\u003cdiv style=\"background: white; padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #e2e8f0;\"\u003e\n\n\u003ch3 style=\"color: #1e293b; font-size: 17px; font-weight: bold; margin: 0 0 18px 0;\"\u003e📐 Product Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b; width: 35%;\"\u003eScale\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003e1\/6\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eSize\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eApprox. 12cm (H) x 15cm (L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eDisplacement (actual vehicle)\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003e61ci (999cc) \/ 74ci (1,212cc)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eMaterial\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eProprietary blend of photopolymer resin (UV-cured resin)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eFinish\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eMulti-layer paint + hand-painted aging process\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eProduction location\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eKadoma City, Osaka, Japan\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eAccessories\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eDisplay stand\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\u003cdiv style=\"background:linear-gradient(135deg,#1e293b 0%,#334155 100%);padding:24px 28px;margin:0 0 30px 0;border-radius:12px;\"\u003e\n\n\u003cinput type=\"checkbox\" id=\"aging-proc-toggle\" style=\"display:none;position:absolute;\"\u003e\u003clabel for=\"aging-proc-toggle\" style=\"cursor:pointer;font-size:15px;font-weight:700;color:#e2e8f0;display:flex;align-items:center;gap:10px;user-select:none;\"\u003e\u003cspan style=\"background:#f59e0b;color:#fff;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:700;flex-shrink:0;\"\u003e🔧\u003c\/span\u003eView production process details (approx. 30 hours of manual work)\u003cspan style=\"margin-left:auto;color:#94a3b8;font-size:13px;\"\u003e▼ Tap to expand\u003c\/span\u003e\u003c\/label\u003e\u003cdiv id=\"aging-proc-content\" style=\"display:none;padding-top:18px;\"\u003e\n\n\u003cdiv style=\"display:flex;flex-direction:column;gap:8px;\"\u003e\n\n\u003cdiv style=\"background:rgba(255,255,255,0.08);padding:12px 16px;border-radius:8px;display:flex;gap:12px;align-items:flex-start;\"\u003e\n\n\u003cspan style=\"background:#f59e0b;color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;\"\u003e1\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cp style=\"color:#f1f5f9;font-size:14px;font-weight:600;margin:0 0 2px 0;\"\u003e3D Data Selection and Modification\u003c\/p\u003e\n\n\u003cp style=\"color:#94a3b8;font-size:13px;margin:0;line-height:1.6;\"\u003eOptimized and modified 3D data purchased from an overseas site for printing\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:rgba(255,255,255,0.08);padding:12px 16px;border-radius:8px;display:flex;gap:12px;align-items:flex-start;\"\u003e\n\n\u003cspan style=\"background:#f59e0b;color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;\"\u003e2\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cp style=\"color:#f1f5f9;font-size:14px;font-weight:600;margin:0 0 2px 0;\"\u003ePhotopolymer 3D Printing\u003c\/p\u003e\n\n\u003cp style=\"color:#94a3b8;font-size:13px;margin:0;line-height:1.6;\"\u003eModeled with a high-definition resin printer, reproducing even the finest fins and piping\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:12px;color:#94a3b8;text-align:right;margin:8px 0 0 0;font-weight:600;\"\u003eTotal: Approx. 30 hours of manual work\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\u003cstyle\u003e#aging-proc-toggle:checked + label + div#aging-proc-content{display:block!important;}\u003c\/style\u003e","brand":"3dscalemodel","offers":[{"title":"Default Title","offer_id":43095877877819,"sku":null,"price":22800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9529\/5291\/files\/IMG_67042_2a70a14d-9408-48dd-9961-90937e12f738.jpg?v=1770529595"},{"product_id":"1-6-harley-davidson-knucklehead-engine-model","title":"1\/6 scale Knucklehead engine model","description":"\u003cp\u003e\u003cem\u003eThe engine that defined the chopper era — now at 1\/6 scale.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Knucklehead. Harley-Davidson’s first overhead-valve V-twin, produced from 1936 to 1947. Named for the rocker boxes that look unmistakably like a pair of knuckles.\u003c\/p\u003e\n\n\u003cp\u003eThis 1\/6-scale replica is built by a single craftsman in Osaka, Japan — the same person who designs, prints, finishes, and ships every model. No factory. No assembly line.\u003c\/p\u003e\n\n\u003ch3\u003eWhy collectors choose this model\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e35–40 hours of hand-finishing per model — sanding, priming, painting, aging\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution photopolymer resin (ELEGOO Mars \/ Saturn) — same process as dental and jewelry casting\u003c\/li\u003e\n  \u003cli\u003eCustom-blended resin formula for impact resistance — tougher than standard 3D prints\u003c\/li\u003e\n  \u003cli\u003eDisplay-ready: includes a custom base. No assembly required.\u003c\/li\u003e\n  \u003cli\u003eShips worldwide from Osaka, Japan — carefully packed for international transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eScale: 1\/6\u003c\/li\u003e\n  \u003cli\u003eMaterial: Custom-blended photopolymer resin + multi-layer urethane paint\u003c\/li\u003e\n  \u003cli\u003eMade in Osaka, Japan — handmade, one at a time\u003c\/li\u003e\n  \u003cli\u003eOnly a limited number produced each month\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor serious collectors who know the difference between a Knucklehead and a Panhead.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/en\/collections\/selling\"\u003e← See all engine models\u003c\/a\u003e\u003c\/p\u003e","brand":"3dscalemodel","offers":[{"title":"Default Title","offer_id":43095878828091,"sku":null,"price":21800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9529\/5291\/files\/IMG_66823_b59ad8af-00a0-4447-afe0-9a97cdd38625.jpg?v=1770529457"},{"product_id":"1-6scale_knucklehead_full_drive_edition","title":"1\/6 Scale Knucklehead - Full Drive Edition -","description":"\u003cdiv style=\"background: linear-gradient(135deg,#1e293b 0%,#334155 100%); padding: 35px 30px; margin: 0 0 30px 0; border-radius: 12px; text-align: center;\"\u003e\n\n\u003ch2 style=\"color: #f1f5f9; font-size: 18px; font-weight: bold; margin: 0 0 8px 0; line-height: 1.4;\"\u003e1936-1947 Knucklehead Engine\u003cbr\u003eEngine and transmission. Primary set fully reproduced in 1\/6 scale\u003c\/h2\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 14px; margin: 0; line-height: 1.6;\"\u003eFull Drive Edition faithfully reproduces the entire power transmission, from the engine to the transmission.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fef3c7; border-left: 6px solid #f59e0b; padding: 30px 25px; margin: 0 0 40px 0; border-radius: 12px;\"\u003e\n\n\u003ch3 style=\"margin: 0 0 20px 0; font-size: 24px; color: #92400e; font-weight: bold;\"\u003e🏆 What is the Full Drive Edition?\u003c\/h3\u003e\n\n\u003cp style=\"margin: 0 0 20px 0; font-size: 16px; color: #78350f; line-height: 1.8;\"\u003eThis is a special edition that reproduces the complete powertrain, including not only the engine itself but also the \u003cstrong\u003etransmission and primary case\u003c\/strong\u003e. Just like the actual vehicle, it fully features the power transmission mechanism from the engine to the rear wheel.\u003c\/p\u003e\n\n\u003cdiv style=\"background: white; padding: 20px; border-radius: 10px;\"\u003e\n\n\u003cp style=\"margin: 0; font-size: 15px; color: #475569; line-height: 1.7;\"\u003e✓ Engine body (OHV Knucklehead)\u003cbr\u003e✓ 4-speed transmission\u003cbr\u003e✓ Primary chain case\u003cbr\u003e✓ Kick starter\u003cbr\u003e✓ Various piping and wiring\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #e2e8f0;\"\u003e\n\n\u003cp style=\"font-size: 14px; line-height: 1.8; color: #334155; margin: 0;\"\u003eThe Knucklehead, which appeared in 1936, was the first OHV engine produced by Vintage V-Twin. This Full Drive Edition precisely reproduces the complete powertrain, including not only the engine body but also the 4-speed transmission, primary chain case, and clutch.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(135deg,#fffbeb 0%,#fef3c7 100%); padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #fde68a;\"\u003e\n\n\u003ch3 style=\"color: #92400e; font-size: 17px; font-weight: bold; margin: 0 0 20px 0;\"\u003e🛠 About this model\u003c\/h3\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 14px;\"\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003e3D Data\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003eProduced based on 3D data purchased from an overseas website\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003e30-hour finish\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003ePolishing, 5-8 layers of paint, and hand-painted aging, all done by one craftsman\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #d97706; color: #fff; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0;\"\u003eOriginal Resin\u003c\/span\u003e\n\u003cp style=\"color: #78350f; font-size: 14px; line-height: 1.6; margin: 0;\"\u003eFinished to be more resistant to cracking than usual. Includes a display stand, no assembly required\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cp style=\"font-size: 12px; color: #a16207; margin: 16px 0 0 0;\"\u003e▶ You can see the production process in the video at the bottom of the product page.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%); padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #bbf7d0;\"\u003e\n\n\u003ch3 style=\"color: #14532d; font-size: 17px; font-weight: bold; margin: 0 0 18px 0;\"\u003e✨ Recommended for\u003c\/h3\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 10px;\"\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose who love vintage American motorcycles\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose interested in the structure and history of engines\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose looking for authentic interior decoration for their garage or office\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; gap: 10px; align-items: center;\"\u003e\n\n\u003cspan style=\"color: #16a34a; font-size: 16px; flex-shrink: 0;\"\u003e✓\u003c\/span\u003e\n\u003cp style=\"color: #166534; font-size: 14px; margin: 0;\"\u003eThose looking for a gift for a motorcycle enthusiast\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: white; padding: 30px; margin: 0 0 30px 0; border-radius: 12px; border: 1px solid #e2e8f0;\"\u003e\n\n\u003ch3 style=\"color: #1e293b; font-size: 17px; font-weight: bold; margin: 0 0 18px 0;\"\u003e📐 Product Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b; width: 35%;\"\u003eScale\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003e1\/6\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eSize\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eHeight approx. 12cm × Length approx. 15cm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eDisplacement (actual vehicle)\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003e61ci (999cc) \/ 74ci (1,212cc)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eMaterial\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eProprietary blend of photopolymer resin (UV-curable resin)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eFinish\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eMulti-layer paint + hand-painted aging effect\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003ePlace of Production\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eKadoma City, Osaka Prefecture, Japan\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #64748b;\"\u003eAccessories\u003c\/td\u003e\n\n\u003ctd style=\"padding: 10px 8px; color: #1e293b; font-weight: 600;\"\u003eDisplay stand\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(135deg,#1e293b 0%,#334155 100%); padding: 24px 28px; margin: 0 0 30px 0; border-radius: 12px;\"\u003e\n\n\u003cinput type=\"checkbox\" id=\"aging-proc-toggle\" style=\"display: none; position: absolute;\"\u003e\u003clabel for=\"aging-proc-toggle\" style=\"cursor: pointer; font-size: 15px; font-weight: bold; color: #e2e8f0; display: flex; align-items: center; gap: 10px; user-select: none;\"\u003e\u003cspan style=\"background: #f59e0b; color: #fff; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e🔧\u003c\/span\u003eSee details of the production process (approx. 30 hours of handiwork)\u003cspan style=\"margin-left: auto; color: #94a3b8; font-size: 13px;\"\u003e▼ Tap to expand\u003c\/span\u003e\u003c\/label\u003e\n\u003cdiv id=\"aging-proc-content\" style=\"display: none; padding-top: 18px;\"\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 8px;\"\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003e3D data selection and modification\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003eOptimizing and modifying 3D data purchased from overseas websites for printing\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003eSLA 3D printing\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003eModeled with a high-definition resin printer. Reproduces even fine fins and piping\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003eSupport removal, cleaning, post-curing\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003eCarefully remove support materials, clean with IPA, then UV cure\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003eSanding, putty repair, primer treatment\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003eSand away layer lines, repair fine details with putty, and prepare the surface with surfacer\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e5\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003ePainting (5-8 layers)\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003e5-8 layers of careful painting from base to finish. Pursuing a metallic feel\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: rgba(255,255,255,0.08); padding: 12px 16px; border-radius: 8px; display: flex; gap: 12px; align-items: flex-start;\"\u003e\n\n\u003cspan style=\"background: #f59e0b; color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0;\"\u003e6\u003c\/span\u003e\n\u003cdiv\u003e\n\n\u003cp style=\"color: #f1f5f9; font-size: 14px; font-weight: 600; margin: 0 0 2px 0;\"\u003eHand-painted aging and weathering\u003c\/p\u003e\n\n\u003cp style=\"color: #94a3b8; font-size: 13px; margin: 0; line-height: 1.6;\"\u003eExpressing 80 years of aging by hand. Rust, oil stains, and metal peeling reproduced brushstroke by brushstroke\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cp style=\"font-size: 12px; color: #94a3b8; text-align: right; margin: 8px 0 0 0; font-weight: 600;\"\u003eTotal: Approximately 30 hours of handiwork\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cstyle\u003e#aging-proc-toggle:checked + label + div#aging-proc-content{display:block!important;}\u003c\/style\u003e\n\u003cdiv style=\"text-align: center; margin-top: 20px;\"\u003e\u003ciframe width=\"315\" height=\"560\" src=\"https:\/\/www.youtube.com\/embed\/wpS383sVtOY\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"3dscalemodel","offers":[{"title":"Default Title","offer_id":43265556906043,"sku":null,"price":38000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9529\/5291\/files\/IMG_8758.jpg?v=1774227610"}],"url":"https:\/\/scale-model-choppers.com\/en\/collections\/knucklehead.oembed","provider":"Scale Model Choppers","version":"1.0","type":"link"}