{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b03fa11db68a","name":"PISTON KIT A GRADE 2002-2008 CRF450R 100 FORGED WOSSNER 8546D400","sku":"56-W4820_400HC","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":9,"price":{"amount":148.46,"formatted":"£148.46"},"summary":"Wossner 100.00mm high-compression big bore forged piston kit designed for enhanced engine performance. Engineered for optimal heat transfer to ensure efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features include high-compression and big bore design for increased performance, forged construction for enhanced strength and longevity, optimized heat transfer for efficient cooling, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications include a bore size of 100.00mm, actual bore diameter of 99.96mm, displacement of 449 cm³, stroke of 62.10mm, clearance of 0.04mm, Wossner compression ratio of 12.00:1, OEM compression ratio of 11.50:1, dome volume of -2.20 cm³, compression height of 24.00mm, and gasket part number D4006, lock part number CW19, pin part number WP037, ring set part number 1000AD-2, and rod part number P4026.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"100mm"},{"label":"Variant Id","value":"256175"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4820_5F400HC/bd2ce77ceb9577a5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4820_5F400HC/bd2ce77ceb9577a5.jpg"],"description":"Wossner 100.00mm high-compression big bore forged piston kit designed for enhanced engine performance. Engineered for optimal heat transfer to ensure efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability. Features include high-compression and big bore design for increased performance, forged construction for enhanced strength and longevity, optimized heat transfer for efficient cooling, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications include a bore size of 100.00mm, actual bore diameter of 99.96mm, displacement of 449 cm³, stroke of 62.10mm, clearance of 0.04mm, Wossner compression ratio of 12.00:1, OEM compression ratio of 11.50:1, dome volume of -2.20 cm³, compression height of 24.00mm, and gasket part number D4006, lock part number CW19, pin part number WP037, ring set part number 1000AD-2, and rod part number P4026.","descriptionMarkdown":"### Wossner High-Compression Forged Piston Kit - 100.00mm Bore\n\nEnhance your engine's performance with this Wossner high-compression, big bore forged piston kit. Engineered for optimal heat transfer, this kit ensures efficient cooling of the combustion chamber. Its advanced elliptical design creates a uniform bearing surface, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.\n\n#### Key Features\n\n\t\n- High-compression and big bore design for increased power output.\n\t\n- Forged construction provides superior strength and durability for extended longevity.\n\t\n- Optimized heat transfer capabilities for efficient combustion chamber cooling.\n\t\n- Elliptical piston design minimizes wear by ensuring even load distribution and preventing piston collapse.\n\t\n- Manufactured in Germany, adhering to high-quality precision and reliability standards.\n\n#### Specifications\n\n\t\n- Bore Size: 100.00mm\n\t\n- Actual Bore Diameter: 99.96mm\n\t\n- Displacement: 449 cm&sup3;\n\t\n- Stroke: 62.10mm\n\t\n- Clearance: 0.04mm\n\t\n- Wossner Compression Ratio: 12.00:1\n\t\n- OEM Compression Ratio: 11.50:1\n\t\n- Dome Volume: -2.20 cm&sup3;\n\t\n- Compression Height: 24.00mm\n\t\n- Gasket Part Number: D4006\n\t\n- Lock Part Number: CW19\n\t\n- Pin Part Number: WP037\n\t\n- Ring Set Part Number: 1000AD-2\n\t\n- Rod Part Number: P4026\n\n#### Manufacturer Part Numbers\n\n\t\n- Wossner Part No: 8546D400","weightGrams":null,"fitments":[],"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-a-grade-2002-2008-crf450r-100-forged-wossner-8546d400","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b03fa11db68a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b03fa11db68a: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. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. 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."]}}