{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"01a28723cb6c","name":"PISTON KIT 1981 YZ80 51.00mm, FORGED WOSSNER 8184D200","sku":"56-W465+200.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":94.28,"formatted":"£94.28"},"summary":"Wossner 8184D200 forged piston kit with a 51.00mm bore size. This high-performance piston is engineered for durability and efficient heat transfer, featuring an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston is specifically designed for two-stroke engines. Specifications include: Actual Bore Diameter 50.95mm, Displacement 79cc, Stroke 42.00mm, Clearance 0.05mm, and Compression Height 24.20mm. This kit includes lock part number CW12, pin part number WP091, and ring set part number RSB5100.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"51mm"},{"label":"Variant Id","value":"255822"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54768_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54768_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54768_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54768_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54768_4.jpg"],"description":"Wossner 8184D200 forged piston kit with a 51.00mm bore size. This high-performance piston is engineered for durability and efficient heat transfer, featuring an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston is specifically designed for two-stroke engines. Specifications include: Actual Bore Diameter 50.95mm, Displacement 79cc, Stroke 42.00mm, Clearance 0.05mm, and Compression Height 24.20mm. This kit includes lock part number CW12, pin part number WP091, and ring set part number RSB5100.","descriptionMarkdown":"### Wossner 51mm Bore Piston Kit for Two-Stroke Engines\n\nThis high-performance Wossner piston kit is engineered for durability and optimal efficiency in two-stroke motorcycle engines. Manufactured in Germany, this forged piston features an elliptical design to ensure even load distribution across the cylinder wall. This reduces localized pressure and helps prevent piston collapse, leading to a longer engine life and consistent performance. The piston is designed for excellent heat transfer, promoting efficient combustion and maintaining optimal operating temperatures.\n\n**Key Features:**\n\n\t\n- High-strength forged piston construction for superior durability.\n\t\n- Optimized heat transfer for improved combustion efficiency and engine reliability.\n\t\n- Elliptical piston design ensures even thrust load distribution, reducing wear.\n\t\n- Specifically designed for high-performance two-stroke applications.\n\t\n- Precision manufactured in Germany for quality assurance.\n\n**Specifications:**\n\n\t\n- Bore Size: 51mm\n\t\n- Actual Bore Diameter: 50.95mm\n\t\n- Displacement: 79cc\n\t\n- Stroke: 42.00mm\n\t\n- Piston Clearance: 0.05mm\n\t\n- Compression Height: 24.20mm\n\n**Included Components (Cross-Reference OEM Part Numbers):**\n\n\t\n- Lock Piston Clip Part Number: CW12\n\t\n- Piston Pin Part Number: WP091\n\t\n- Ring Set Part Number: RSB5100","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-1981-yz80-5100mm-forged-wossner-8184d200","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/01a28723cb6c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/01a28723cb6c: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."]}}