{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"adbdab4b8907","name":"PISTON KIT 06-11 YFM700 HC 103, WOSSNER 8673D100 RAPTOR","sku":"56-W4903+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner 8673D100 forged piston kit features a 103.00mm bore and is designed for high-compression applications. Precision-engineered in Germany, this piston enhances strength, heat dissipation, and durability, while its elliptical shape ensures even load distribution and resistance to collapse under thermal expansion. Features include a forged high-compression piston for increased performance and strength, designed for effective heat transfer from the combustion chamber to cylinder walls, and an elliptical design that provides a uniform bearing surface under heat expansion. It reduces localized pressure and prevents piston collapse. Specifications include a bore of 103.00 mm, actual bore diameter of 102.94 mm, display of 686 cm&sup3;, hub stroke of 84.00 mm, clearance of 0.06 mm, compression height of 27.50 mm, dome volume of +7.10 cm&sup3;, Wossner compression ratio of 11.00:1, and OEM compression ratio of 9.20:1. This kit includes piston, lock, pin, and ring set. Part number 56-W4903+100.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"103mm"},{"label":"Variant Id","value":"256337"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55283_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55283_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55283_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55283_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55283_4.jpg"],"description":"Wossner 8673D100 forged piston kit features a 103.00mm bore and is designed for high-compression applications. Precision-engineered in Germany, this piston enhances strength, heat dissipation, and durability, while its elliptical shape ensures even load distribution and resistance to collapse under thermal expansion. Features include a forged high-compression piston for increased performance and strength, designed for effective heat transfer from the combustion chamber to cylinder walls, and an elliptical design that provides a uniform bearing surface under heat expansion. It reduces localized pressure and prevents piston collapse. Specifications include a bore of 103.00 mm, actual bore diameter of 102.94 mm, display of 686 cm&sup3;, hub stroke of 84.00 mm, clearance of 0.06 mm, compression height of 27.50 mm, dome volume of +7.10 cm&sup3;, Wossner compression ratio of 11.00:1, and OEM compression ratio of 9.20:1. This kit includes piston, lock, pin, and ring set. Part number 56-W4903+100.WO.","descriptionMarkdown":"### Wossner Forged High-Compression Piston Kit 8673D100\n\nEnhance the performance and durability of your YFM700 Raptor with the Wossner 8673D100 forged piston kit. Engineered in Germany for high-compression applications, this piston kit is designed to deliver superior strength and optimized heat management.\n\n**Key Features:**\n\n\t\n- Forged high-compression piston for increased power output and robustness.\n\t\n- Advanced design promotes effective heat transfer, crucial for engine longevity.\n\t\n- Features an elliptical piston shape to ensure an even bearing surface, even under extreme temperatures.\n\t\n- Minimizes localized pressure points and helps prevent piston collapse due to thermal expansion.\n\t\n- Precision manufactured in Germany for exceptional quality and reliability.\n\n**Specifications:**\n\n\t\n- Bore Size: 103.00 mm\n\t\n- Actual Bore Diameter: 102.94 mm\n\t\n- Display Displacement: 686 cm&sup3;\n\t\n- Stroke: 84.00 mm\n\t\n- Piston Clearance: 0.06 mm\n\t\n- Compression Height: 27.50 mm\n\t\n- Dome Volume: +7.10 cm&sup3;\n\t\n- Wossner Compression Ratio: 11.00:1\n\t\n- OEM Compression Ratio: 9.20:1","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-06-11-yfm700-hc-103-wossner-8673d100-raptor","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/adbdab4b8907:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/adbdab4b8907:1"}},"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."]}}