{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ced23a301c43","name":"PISTON KIT 88-92 YZ80 49.00, WOSSNER 8187D100 YAMAHA MX","sku":"56-W569+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":3,"price":{"amount":94.28,"formatted":"£94.28"},"summary":"Wossner 8187D100 piston kit is a forged piston kit precision engineered in Germany for durability and optimal heat dissipation. This piston kit features an elliptical design for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete engine rebuild. Bore size is 49.00 mm, actual bore diameter is 48.95 mm, stroke is 45.60 mm, display displacement is 82 cm&sup3;, clearance is 0.05 mm, compression ratio is 2-stroke (Wossner and OEM), and compression height is 27.00 mm. This kit includes piston, lock CW12, pin WP091, and ring set RSB4900.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"49.0mm"},{"label":"Variant Id","value":"256909"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B100_2EWO/472b3208a3835ec8.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B100_2EWO/472b3208a3835ec8.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B100_2EWO/78fe2b2c6b4ce20a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B100_2EWO/d27823796f29f785.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W569_2B100_2EWO/fa01653c343f8906.jpg"],"description":"Wossner 8187D100 piston kit is a forged piston kit precision engineered in Germany for durability and optimal heat dissipation. This piston kit features an elliptical design for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete engine rebuild. Bore size is 49.00 mm, actual bore diameter is 48.95 mm, stroke is 45.60 mm, display displacement is 82 cm&sup3;, clearance is 0.05 mm, compression ratio is 2-stroke (Wossner and OEM), and compression height is 27.00 mm. This kit includes piston, lock CW12, pin WP091, and ring set RSB4900.","descriptionMarkdown":"### Wossner 8187D100 Oversize Piston Kit for Yamaha YZ80 (1988-1992)\n\nEnhance your Yamaha YZ80's performance with the Wossner 8187D100 Oversize Piston Kit. Precision engineered in Germany, this forged piston kit is designed for 49.00 mm bore applications, offering a +1.00 mm oversize solution for optimal engine health and power output. The advanced construction ensures superior durability and efficient heat dissipation, crucial for high-performance motocross engines. Experience improved engine longevity and reliability with this meticulously crafted component.\n\n**Key Features:**\n\n- Forged piston construction for exceptional strength and thermal efficiency.\n\n- Engineered for effective heat transfer from the combustion chamber, reducing thermal stress.\n\n- Elliptical piston profile promotes uniform thrust load distribution.\n\n- Minimizes localized pressure, significantly reducing the risk of piston collapse.\n\n- Precision manufactured in Germany for uncompromising quality.\n\n- Designed as a complete kit for a precise engine rebuild.\n\n**Specifications:**\n\n- Bore Size: 49.00 mm\n\n- Actual Bore Diameter: 48.95 mm\n\n- Stroke: 45.60 mm\n\n- Display Displacement: 82 cm&sup3;\n\n- Clearance: 0.05 mm\n\n- Compression Ratio: 2-stroke (Wossner and OEM)\n\n- Compression Height: 27.00 mm\n\n**Included Components:**\n\n- Piston Kit: 8187D100\n\n- Lock: CW12\n\n- Pin: WP091\n\n- Ring Set: RSB4900","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-yz80-4900-wossner-8187d100-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ced23a301c43:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ced23a301c43:1"}},"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."]}}