{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"55c94a3a9021","name":"PISTON KIT 86-88 YZ125 57.00, WOSSNER 8118D100 YAMAHA MX","sku":"56-W559+100.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.68,"formatted":"£125.68"},"summary":"This Wossner 57.00mm (+1.00 oversize) forged piston kit features a high-strength forged construction with an elliptical design that enhances structural integrity, promotes even distribution of combustion forces, and improves thermal management. Its design ensures consistent and reliable performance under demanding riding conditions. Features include a forged piston for high strength and durability, an elliptical design for a uniform bearing surface during heat expansion, and even thrust load distribution to help prevent localized stress and piston collapse. Designed for effective combustion heat transfer to the cylinder walls. Manufactured in Germany. Specifications: Bore 57.00mm, actual diameter 56.94mm, displacement 123 cm³, stroke 50.00mm, clearance 0.06mm, compression height 30.00mm, compression ratio 2-stroke. Cross-Reference OEM Part Numbers: Piston Kit Part No. 56-W559+100.WO, Wossner Piston Kit No. 8118D100, Lock CW16, Pin WP036, Ring Set RSB5700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"57mm"},{"label":"Variant Id","value":"256821"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W559_2B100_2EWO/ef1bb144b486020c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W559_2B100_2EWO/ef1bb144b486020c.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W559_2B100_2EWO/71f127497957a404.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W559_2B100_2EWO/cb2e1cc413852a95.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W559_2B100_2EWO/64773e6f650e78ee.jpg"],"description":"This Wossner 57.00mm (+1.00 oversize) forged piston kit features a high-strength forged construction with an elliptical design that enhances structural integrity, promotes even distribution of combustion forces, and improves thermal management. Its design ensures consistent and reliable performance under demanding riding conditions. Features include a forged piston for high strength and durability, an elliptical design for a uniform bearing surface during heat expansion, and even thrust load distribution to help prevent localized stress and piston collapse. Designed for effective combustion heat transfer to the cylinder walls. Manufactured in Germany. Specifications: Bore 57.00mm, actual diameter 56.94mm, displacement 123 cm³, stroke 50.00mm, clearance 0.06mm, compression height 30.00mm, compression ratio 2-stroke. Cross-Reference OEM Part Numbers: Piston Kit Part No. 56-W559+100.WO, Wossner Piston Kit No. 8118D100, Lock CW16, Pin WP036, Ring Set RSB5700.","descriptionMarkdown":"### Wossner Forged Piston Kit 57.00mm (+1.00 Oversize)\n\nThis Wossner forged piston kit is designed for enhanced performance and durability. Engineered with precision, it features a robust construction that withstands high stresses and temperatures common in racing and performance riding.\n\n#### Key Features:\n\n \n- High-strength forged construction for superior durability.\n \n- Elliptical piston design promotes uniform bearing surface during thermal expansion.\n \n- Distributes thrust loads evenly to prevent localized stress and potential piston collapse.\n \n- Optimized for efficient combustion heat transfer to the cylinder walls, aiding in thermal management.\n \n- Manufactured in Germany to exacting standards.\n\n#### Specifications:\n\n \n- Bore Size: 57.00mm\n \n- Actual Piston Diameter: 56.94mm\n \n- Displacement: 123 cm&sup3;\n \n- Stroke: 50.00mm\n \n- Recommended Clearance: 0.06mm\n \n- Compression Height: 30.00mm\n \n- Compression Ratio: 2-stroke\n\n#### Included Components:\n\n \n- Piston\n \n- Lock Rings (CW16)\n \n- Pin (WP036)\n \n- Ring Set (RSB5700)","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-86-88-yz125-5700-wossner-8118d100-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/55c94a3a9021:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/55c94a3a9021:1"}},"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."]}}