{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"841f34686d6a","name":"PISTON KIT 88-92 YZ80 49.50, WOSSNER 8187D150 YAMAHA MX","sku":"56-W569+150.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":94.28,"formatted":"£94.28"},"summary":"The Wossner 8187D150 piston kit features a 49.50 mm bore for +1.50 mm oversize applications. Manufactured in Germany, this forged piston provides high strength and thermal performance, with an optimised design for effective heat dissipation. Its elliptical profile ensures even load distribution under heat, preventing localised stress and piston collapse. This complete kit includes essential components for engine restoration, with a bore size of 49.50 mm, actual bore diameter of 49.45 mm, stroke of 45.60 mm, display displacement of 82 cm&sup3;, clearance of 0.05 mm, and compression height of 27.00 mm. The compression ratio is 2-stroke (Wossner and OEM). Kit includes lock CW12, pin WP091, and ring set RSB4950. Part number 56-W569+150.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"49.5mm"},{"label":"Variant Id","value":"256911"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B150_2EWO/472b3208a3835ec8.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B150_2EWO/472b3208a3835ec8.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B150_2EWO/a321c29071bcfc22.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B150_2EWO/d27823796f29f785.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B150_2EWO/dc945c4cdd1febde.jpg"],"description":"The Wossner 8187D150 piston kit features a 49.50 mm bore for +1.50 mm oversize applications. Manufactured in Germany, this forged piston provides high strength and thermal performance, with an optimised design for effective heat dissipation. Its elliptical profile ensures even load distribution under heat, preventing localised stress and piston collapse. This complete kit includes essential components for engine restoration, with a bore size of 49.50 mm, actual bore diameter of 49.45 mm, stroke of 45.60 mm, display displacement of 82 cm&sup3;, clearance of 0.05 mm, and compression height of 27.00 mm. The compression ratio is 2-stroke (Wossner and OEM). Kit includes lock CW12, pin WP091, and ring set RSB4950. Part number 56-W569+150.WO.","descriptionMarkdown":"### Wossner 8187D150 Piston Kit +1.50mm Oversize\n\n This Wossner 8187D150 Piston Kit is a precision-engineered replacement part designed for engine restoration. Manufactured in Germany, this kit features a forged piston construction, which provides superior strength and enhanced thermal performance compared to cast pistons. The piston is designed with an elliptical profile to ensure even load distribution and to accommodate thermal expansion effectively, minimizing localized stress and preventing potential piston failure under heat. This complete kit includes all necessary components for a reliable engine rebuild.\n\n#### Key Features:\n\n \n- Forged Piston Construction: Offers high strength and durability for demanding performance.\n \n- Optimized Thermal Efficiency: Designed for effective heat dissipation from the combustion chamber.\n \n- Elliptical Piston Profile: Ensures even thrust load distribution during engine operation and thermal expansion.\n \n- Reduced Stress Concentration: Prevents localized pressure buildup, reducing the risk of component failure.\n \n- Precision Manufacturing: Engineered and produced in Germany for high quality and reliability.\n \n- Oversize Application: This kit is for a +1.50 mm oversize application.\n\n#### Specifications:\n\n \n- Bore Size: 49.50 mm\n \n- Actual Bore Diameter: 49.45 mm\n \n- Stroke: 45.60 mm\n \n- Displacement: 82 cm&sup3;\n \n- Piston Clearance: 0.05 mm\n \n- Compression Ratio: 2-stroke (Wossner and OEM)\n \n- Compression Height: 27.00 mm\n\n#### Kit Components (Cross-Reference):\n\n \n- Piston Kit Part Number: 8187D150\n \n- Lock Ring: CW12\n \n- Piston Pin: WP091\n \n- Ring Set: RSB4950","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-88-92-yz80-4950-wossner-8187d150-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/841f34686d6a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/841f34686d6a: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."]}}