{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1da6dc611742","name":"PISTON KIT 04-07 CR125 58.00, WOSSNER 8170D400 HONDA MX","sku":"56-W859_400.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.68,"formatted":"£125.68"},"summary":"Wossner 58.00mm piston kit with a 57.95mm piston size. This is a +4.00mm oversize upgrade for increased displacement. Precision-forged in Germany for superior durability and optimal thermal performance. Features include exceptional strength, high-load tolerance, advanced heat transfer design for improved thermal efficiency, and an elliptical profile that enhances bearing surface under thermal expansion. Reduces the risk of piston collapse by distributing thrust loads evenly. German engineering and manufacturing quality. Specifications: Bore 58.00mm, Piston Size 57.95mm, Compression Ratio 2-stroke, Clearance 0.05mm, Compression Height 28.00mm, Stroke 54.50mm, Displacement 125 cm³. Cross-Reference OEM Part Numbers: NAMURA NX-10003, WOSSNER 8170DA, WISECO 859M05400, 13110-KSR-730, 13120-KSR-730, 13111-KV3-000, 13111-KZ4-000, 13121-KSR-731, 94601-15000.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"58.00mm"},{"label":"Variant Id","value":"258090"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock57036_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock57036_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock57036_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock57036_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock57036_4.jpg"],"description":"Wossner 58.00mm piston kit with a 57.95mm piston size. This is a +4.00mm oversize upgrade for increased displacement. Precision-forged in Germany for superior durability and optimal thermal performance. Features include exceptional strength, high-load tolerance, advanced heat transfer design for improved thermal efficiency, and an elliptical profile that enhances bearing surface under thermal expansion. Reduces the risk of piston collapse by distributing thrust loads evenly. German engineering and manufacturing quality. Specifications: Bore 58.00mm, Piston Size 57.95mm, Compression Ratio 2-stroke, Clearance 0.05mm, Compression Height 28.00mm, Stroke 54.50mm, Displacement 125 cm³. Cross-Reference OEM Part Numbers: NAMURA NX-10003, WOSSNER 8170DA, WISECO 859M05400, 13110-KSR-730, 13120-KSR-730, 13111-KV3-000, 13111-KZ4-000, 13121-KSR-731, 94601-15000.","descriptionMarkdown":"### Wossner Piston Kit 58.00mm Oversize for Increased Displacement\n\nEnhance your engine's performance with this Wossner Piston Kit, precisely engineered for a 58.00mm bore. This kit features a 57.95mm piston, acting as a +4.00mm oversize upgrade to boost your engine's displacement. Manufactured with precision in Germany, Wossner pistons are forged to deliver superior durability and optimal thermal performance under demanding conditions.\n\n**Key Features:**\n\n \n- Forged Construction: Offers exceptional strength and high-load tolerance for reliable operation.\n \n- Advanced Thermal Design: Features an advanced heat transfer design to improve overall thermal efficiency.\n \n- Elliptical Piston Profile: Enhances the bearing surface during thermal expansion, contributing to longevity.\n \n- Even Thrust Load Distribution: Designed to reduce the risk of piston collapse by distributing thrust loads evenly.\n \n- German Engineering: Exemplifies quality and precision in manufacturing.\n\n**Specifications:**\n\n \n- Bore: 58.00mm\n \n- Piston Size: 57.95mm\n \n- Compression Ratio: 2-stroke\n \n- Clearance: 0.05mm\n \n- Compression Height: 28.00mm\n \n- Stroke: 54.50mm\n \n- Displacement: 125 cm&sup3;\n\n**Cross-Reference OEM Part Numbers:**\n\n \n- NAMURA NX-10003\n \n- WOSSNER 8170DA\n \n- WISECO 859M05400\n \n- 13110-KSR-730\n \n- 13120-KSR-730\n \n- 13111-KV3-000\n \n- 13111-KZ4-000\n \n- 13121-KSR-731\n \n- 94601-15000","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-04-07-cr125-5800-wossner-8170d400-honda-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1da6dc611742:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1da6dc611742:1"}},"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."]}}