{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"4e1e91e2f214","name":"PISTON KIT 05 YZF/WR450F 95 HC, WOSSNER 8647DA, 5TJ-11631-00-00","sku":"56-W202.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner forged piston kit with high compression for performance. Engineered for optimal heat transfer to cylinder walls for efficient combustion. Features an elliptical design to prevent piston collapse and ensure uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads. Manufactured in Germany. Specifications include: Bore Size 95.00mm, Actual Bore Diameter 94.95mm, Displacement 449 cm&sup3;, Stroke 63.40mm, Clearance 0.05mm, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.30:1, Dome Volume -6.30 cm&sup3;, Compression Height 23.50mm. Included components: Lock Part Number CW18, Pin Part Number WP053, Ring Set Part Number 950ADS-2, Rod Part Number P4007. Cross-reference OEM Part Number 5TJ-11631-00-00.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"95mm"},{"label":"Variant Id","value":"254972"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock53918_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock53918_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53918_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53918_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock53918_4.jpg"],"description":"Wossner forged piston kit with high compression for performance. Engineered for optimal heat transfer to cylinder walls for efficient combustion. Features an elliptical design to prevent piston collapse and ensure uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads. Manufactured in Germany. Specifications include: Bore Size 95.00mm, Actual Bore Diameter 94.95mm, Displacement 449 cm&sup3;, Stroke 63.40mm, Clearance 0.05mm, Wossner Compression Ratio 13.50:1, OEM Compression Ratio 12.30:1, Dome Volume -6.30 cm&sup3;, Compression Height 23.50mm. Included components: Lock Part Number CW18, Pin Part Number WP053, Ring Set Part Number 950ADS-2, Rod Part Number P4007. Cross-reference OEM Part Number 5TJ-11631-00-00.","descriptionMarkdown":"### Wossner High Compression Forged Piston Kit\n\n Experience enhanced performance with this Wossner forged piston kit. Engineered for high compression, this piston is designed to optimize heat transfer to the cylinder walls, promoting efficient combustion and superior power output. Its innovative elliptical design ensures a uniform bearing surface even under heat expansion, effectively reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured with precision in Germany to stringent quality standards, this kit delivers reliability and top-tier performance.\n\n#### Key Features\n\n \n- High-compression forged piston for increased power and responsiveness.\n \n- Advanced design for optimized heat transfer and efficient combustion.\n \n- Elliptical piston shape to prevent collapse and ensure even wear.\n \n- German manufacturing guarantees high quality and durability.\n\n#### Specifications\n\n \n- Bore Size: 95.00mm\n \n- Actual Bore Diameter: 94.95mm\n \n- Displacement: 449 cm&sup3;\n \n- Stroke: 63.40mm\n \n- Clearance: 0.05mm\n \n- Wossner Compression Ratio: 13.50:1\n \n- OEM Compression Ratio: 12.30:1\n \n- Dome Volume: -6.30 cm&sup3;\n \n- Compression Height: 23.50mm\n\n#### Included Components\n\n \n- Lock Part Number: CW18\n \n- Pin Part Number: WP053\n \n- Ring Set Part Number: 950ADS-2\n \n- Rod Part Number: P4007\n\n#### Cross-Reference OEM Part Numbers\n\n \n- 5TJ-11631-00-00","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2005"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2005"}],"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-05-yzfwr450f-95-hc-wossner-8647da-5tj-11631-00-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/4e1e91e2f214:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/4e1e91e2f214:1"}},"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."]}}