{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"acf0c9250b6a","name":"PISTON KIT 85-00 XR600R 97.00, FORGED WOSSNER 8574DA 13110-MK2-043","sku":"56-W4577.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner 97mm forged piston kit for Honda XR600R 1985-2001. Features include forged construction for superior strength, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface under heat expansion. This piston reduces localized pressure, evenly distributes thrust loads, and prevents piston collapse under high-stress conditions. Bore size is 97.00mm (actual size 96.94mm). Specifications include Wossner Part Number 8574DA, Lock Part Number CW24, Pin Part Number WP057, Ring Set Part Number 970XSY, Rod Part Number P4028, displacement 591 cm³, stroke 80.00mm, clearance 0.06mm, compression ratio 9.30:1 (OEM 9.00:1), dome volume -4.80 cm³, compression height 29.70mm, and theoretical weight 348.00g. Cross-reference OEM part numbers include 13110-MK2-043 and 4577M09700.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"97mm"},{"label":"Variant Id","value":"255742"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock54688_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock54688_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54688_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54688_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54688_4.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock54688_5.jpg"],"description":"Wossner 97mm forged piston kit for Honda XR600R 1985-2001. Features include forged construction for superior strength, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface under heat expansion. This piston reduces localized pressure, evenly distributes thrust loads, and prevents piston collapse under high-stress conditions. Bore size is 97.00mm (actual size 96.94mm). Specifications include Wossner Part Number 8574DA, Lock Part Number CW24, Pin Part Number WP057, Ring Set Part Number 970XSY, Rod Part Number P4028, displacement 591 cm³, stroke 80.00mm, clearance 0.06mm, compression ratio 9.30:1 (OEM 9.00:1), dome volume -4.80 cm³, compression height 29.70mm, and theoretical weight 348.00g. Cross-reference OEM part numbers include 13110-MK2-043 and 4577M09700.","descriptionMarkdown":"### Wossner 97mm Forged Piston Kit for Honda XR600R\n\nEnhance your Honda XR600R's performance and durability with this premium 97mm forged piston kit from Wossner. Engineered in Germany, this piston kit is designed for optimal combustion efficiency and longevity, even under demanding conditions.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides superior strength and resilience compared to cast pistons, ensuring long-term reliability.\n\t\n- Optimized Heat Transfer: Engineered to efficiently transfer heat to the cylinder walls, promoting better cooling and preventing overheating.\n\t\n- Elliptical Design: Features an elliptical profile that guarantees a uniform bearing surface even with heat expansion, reducing stress.\n\t\n- Reduced Localized Pressure: Distributes thrust loads evenly, preventing localized pressure points and mitigating the risk of piston collapse.\n\t\n- High-Performance Specifications: Built to exacting standards for enhanced power output and smooth operation.\n\n#### Specifications:\n\n\t\n- Bore Size: 97.00mm (Actual Size: 96.94mm)\n\t\n- Wossner Part Number: 8574DA\n\t\n- Lock Part Number: CW24\n\t\n- Pin Part Number: WP057\n\t\n- Ring Set Part Number: 970XSY\n\t\n- Rod Part Number: P4028\n\t\n- Displacement: 591 cm&sup3;\n\t\n- Stroke: 80.00mm\n\t\n- Clearance: 0.06mm\n\t\n- Compression Ratio: 9.30:1\n\t\n- OEM Compression Ratio: 9.00:1\n\t\n- Dome Volume: -4.80 cm&sup3;\n\t\n- Compression Height: 29.70mm\n\t\n- Theoretical Weight: 348.00g\n\n#### Cross-Reference OEM Part Numbers:\n\n\t\n- 13110-MK2-043\n\t\n- 4577M09700","weightGrams":null,"fitments":[{"make":"HONDA","model":"XR 600R","cc":null,"notes":null,"years":"1985–2001"}],"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-85-00-xr600r-9700-forged-wossner-8574da-13110-mk2-043","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/acf0c9250b6a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/acf0c9250b6a: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."]}}