{"product_id":"cylinder","title":"Cylinder","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eHARDDRIVE Cylinder — Durable Performance for Harley Engines\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHARDDRIVE Cylinder\u003c\/strong\u003e replacement cylinders are engineered for reliable street performance and smooth installation on classic Harley-Davidson platforms. Built to exacting standards, these cylinders offer improved wear resistance and straightforward fitment for bolt-on engine refreshes or modest displacement upgrades.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Aluminum cylinders with cast-iron sleeves for Evo and Sportster models; full cast-iron options for Panhead and Shovelhead applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish requirement:\u003c\/strong\u003e All cylinders must be finish-honed and matched to pistons (pistons sold separately) to ensure correct clearances and optimal ring seal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for stock replacement, rebuilds, or small bore increases on Sportsters and big-bore Shovels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold:\u003c\/strong\u003e Individually (each).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose HARDDRIVE for dependable materials, precise construction, and compatibility with common Harley rebuild projects. Pair with the correct pistons and professional honing for best long-term performance.\u003c\/p\u003e","brand":"HARDDRIVE","offers":[{"title":"Front \/ 30-631","offer_id":52240140992830,"sku":"820-51550-51s","price":94.9,"currency_code":"USD","in_stock":false},{"title":"Rear \/ 30-632","offer_id":52240141025598,"sku":"820-51551-51s","price":114.06,"currency_code":"USD","in_stock":false},{"title":"Front \/ 30-629","offer_id":52240141058366,"sku":"820-51552-51s","price":94.9,"currency_code":"USD","in_stock":false},{"title":"Rear \/ 30-630","offer_id":52240141091134,"sku":"820-51553-51s","price":114.06,"currency_code":"USD","in_stock":false},{"title":"Front \/ 34-005","offer_id":52240141123902,"sku":"820-51554-51s","price":94.9,"currency_code":"USD","in_stock":false},{"title":"Rear \/ 34-006","offer_id":52240141156670,"sku":"820-51555-51s","price":114.06,"currency_code":"USD","in_stock":false},{"title":"Front \/ 34-001","offer_id":52240141189438,"sku":"820-51556-51s","price":94.9,"currency_code":"USD","in_stock":false},{"title":"Rear \/ 34-002","offer_id":52240141222206,"sku":"820-51557-51s","price":114.06,"currency_code":"USD","in_stock":false},{"title":"Front \/ Rear \/ 34-013","offer_id":52240141254974,"sku":"820-51558-51s","price":88.43,"currency_code":"USD","in_stock":false},{"title":"Front \/ Rear \/ 34-014","offer_id":52240141287742,"sku":"820-51559-51s","price":88.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0373\/5614\/files\/e777-572a8ea2f39d9.jpg?v=1758331284","url":"https:\/\/thed-zone.myshopify.com\/products\/cylinder","provider":"thed.zone","version":"1.0","type":"link"}