{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f38808e2e93c","name":"PISTON KIT 10-13 YZF450 13.5 B, COMP 13.5:1 WOSSNER 8783DB","sku":"56-W261.B.WO.HC","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":5,"price":{"amount":208.24,"formatted":"£208.24"},"summary":"Wossner high-compression forged piston kit with a compression ratio of 13.50:1. Manufactured in Germany, this piston offers superior strength and an optimized design for efficient combustion chamber heat transfer. The elliptical shape ensures an even bearing surface, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Bore: 97.01 mm, Actual Bore Size: 96.96 mm, Display: 449 cm&sup3;, Stroke: 60.80 mm, Clearance: 0.04 mm, OEM Compression Ratio: 12.50:1, Dome Volume: -2.10 cm&sup3;, Compression Height: 24.00 mm. Includes Piston: Wossner 8783DB, Lock: CW18, Pin: WP072, Ring Set: 970ADS-2, Rod: P4032. Weight: 426 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"13.5mm"},{"label":"Variant Id","value":"255292"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W261_2EB_2EWO_2EHC/f1e343be3b559947.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W261_2EB_2EWO_2EHC/f1e343be3b559947.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W261_2EB_2EWO_2EHC/06ff0a13d3e95ab6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W261_2EB_2EWO_2EHC/b2889b7210b43d53.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W261_2EB_2EWO_2EHC/c8906ebcc1445fe9.jpg"],"description":"Wossner high-compression forged piston kit with a compression ratio of 13.50:1. Manufactured in Germany, this piston offers superior strength and an optimized design for efficient combustion chamber heat transfer. The elliptical shape ensures an even bearing surface, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Bore: 97.01 mm, Actual Bore Size: 96.96 mm, Display: 449 cm&sup3;, Stroke: 60.80 mm, Clearance: 0.04 mm, OEM Compression Ratio: 12.50:1, Dome Volume: -2.10 cm&sup3;, Compression Height: 24.00 mm. Includes Piston: Wossner 8783DB, Lock: CW18, Pin: WP072, Ring Set: 970ADS-2, Rod: P4032. Weight: 426 grams.","descriptionMarkdown":"### Wossner Forged Piston Kit 13.5:1 Compression\n\nEnhance your motorcycle's performance with this high-compression forged piston kit from Wossner. Engineered for precision and durability, this kit is designed to optimize combustion efficiency and deliver increased power.\n\n#### Key Features\n\n\t\n- High Compression Ratio: Achieve a significant boost in performance with a 13.5:1 compression ratio, higher than the OEM 12.5:1.\n\t\n- Forged Construction: Made from high-quality materials using a forging process for superior strength, resilience, and longevity.\n\t\n- Optimized Heat Transfer: Features an advanced design that promotes efficient combustion chamber heat transfer, contributing to stable engine temperatures.\n\t\n- Elliptical Piston Design: The unique elliptical shape ensures an even bearing surface, effectively distributing thrust loads and preventing localized pressure points or piston collapse.\n\t\n- German Engineering: Manufactured in Germany, ensuring high standards of quality and precision.\n\n#### Specifications\n\n\t\n- Bore Diameter: 97.01 mm\n\t\n- Actual Bore Size: 96.96 mm\n\t\n- Displacement: 449 cm&sup3;\n\t\n- Stroke Length: 60.80 mm\n\t\n- Piston Clearance: 0.04 mm\n\t\n- Compression Ratio: 13.50:1\n\t\n- Dome Volume: -2.10 cm&sup3;\n\t\n- Compression Height: 24.00 mm\n\n#### Included Components\n\n\t\n- Wossner Piston (Part Number: 8783DB)\n\t\n- Lock Ring (Part Number: CW18)\n\t\n- Piston Pin (Part Number: WP072)\n\t\n- Ring Set (Part Number: 970ADS-2)\n\t\n- Connecting Rod (Part Number: P4032)","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2010–2013"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2010–2013"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-10-13-yzf450-135-b-comp-1351-wossner-8783db","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f38808e2e93c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f38808e2e93c:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. 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Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}