{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e6b72292b8d9","name":"PISTON KIT 93-01 YZ80 46.00 A, WOSSNER 8239DA YAMAHA MX","sku":"56-W671+0.00.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":83.92,"formatted":"£83.92"},"summary":"The 46mm Bore Wossner Piston Kit (Part No. 8239DA) is a standard size forged piston. Precision-manufactured in Germany, this piston is designed for high strength and efficient heat transfer. Its elliptical shape optimises surface bearing during thermal expansion, distributing load evenly to help prevent piston failure. Features include forged piston construction for superior strength, optimised combustion heat transfer to cylinder walls, an elliptical design that reduces localised pressure and distributes thrust loads evenly, and resistance to piston collapse under thermal expansion. Manufactured in Germany. Specifications: Bore Size: 46.00 mm, Clearance: 0.05 mm, Compression Height: 26.00 mm, Stroke: 47.80 mm, Displacement: 82 cm³, Compression Ratio: 2-stroke (Wossner and OEM). Cross-Reference OEM Part Numbers: PROX 01.2107. Included Components: Lock: CW14, Pin: WP058, Ring Set: RSB4600.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"46.00mm"},{"label":"Variant Id","value":"257389"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56335_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56335_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56335_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56335_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56335_4.jpg"],"description":"The 46mm Bore Wossner Piston Kit (Part No. 8239DA) is a standard size forged piston. Precision-manufactured in Germany, this piston is designed for high strength and efficient heat transfer. Its elliptical shape optimises surface bearing during thermal expansion, distributing load evenly to help prevent piston failure. Features include forged piston construction for superior strength, optimised combustion heat transfer to cylinder walls, an elliptical design that reduces localised pressure and distributes thrust loads evenly, and resistance to piston collapse under thermal expansion. Manufactured in Germany. Specifications: Bore Size: 46.00 mm, Clearance: 0.05 mm, Compression Height: 26.00 mm, Stroke: 47.80 mm, Displacement: 82 cm³, Compression Ratio: 2-stroke (Wossner and OEM). Cross-Reference OEM Part Numbers: PROX 01.2107. Included Components: Lock: CW14, Pin: WP058, Ring Set: RSB4600.","descriptionMarkdown":"### Wossner 46mm Bore Piston Kit for Yamaha YZ80 (1993-2001)\n\n Enhance the performance and reliability of your Yamaha YZ80 with this precision-engineered Wossner Piston Kit. Designed as a standard size replacement, this kit features a forged piston for superior strength and durability.\n\n **Key Features:**\n\n \n- Forged Piston Construction: Delivers exceptional strength for demanding riding conditions.\n \n- Optimised Heat Transfer: Facilitates efficient heat transfer to cylinder walls, promoting optimal operating temperatures.\n \n- Elliptical Piston Design: This advanced shape reduces localised pressure and evenly distributes thrust loads, enhancing piston longevity and preventing failure.\n \n- Resists Piston Collapse: Engineered to withstand thermal expansion and maintain its integrity.\n \n- German Engineering: Manufactured in Germany to exacting standards.\n\n **Specifications:**\n\n \n- Bore Size: 46.00 mm\n \n- Clearance: 0.05 mm\n \n- Compression Height: 26.00 mm\n \n- Stroke: 47.80 mm\n \n- Displacement: 82 cm&sup3;\n \n- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)\n\n **Included Components:**\n\n \n- Lock: CW14\n \n- Pin: WP058\n \n- Ring Set: RSB4600\n\n This Wossner piston kit is a high-quality upgrade designed to meet the rigorous demands of motocross riding.","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-93-01-yz80-4600-a-wossner-8239da-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e6b72292b8d9:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e6b72292b8d9:1"}},"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."]}}