{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"89cf40db4121","name":"PISTON KIT 1997 YZ125 54.00, WOSSNER 8117DB YAMAHA MX","sku":"56-W693.B.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":115.32,"formatted":"£115.32"},"summary":"Wossner forged piston kit for high-performance two-stroke engines. This piston features an elliptical design for even heat expansion and uniform thrust load distribution, minimising localised pressure and supporting efficient heat transfer to cylinder walls. Precision-crafted in Germany, it enhances engine reliability by reducing the risk of mechanical failure. Features: Forged piston construction for high strength and durability. Elliptical shape distributes pressure evenly under heat expansion. Prevents piston collapse and enhances structural stability. Supports efficient combustion heat dissipation. Precision-crafted in Germany. Specifications: Bore Size: 54.01mm (+0.01mm oversize). Actual Diameter: 53.95mm. Compression Height: 28.00mm. Stroke: 54.50mm. Displacement: 124 cm&sup3;. Piston Clearance: 0.06mm. Compression Ratio: 2-stroke (Wossner and OEM). Cross-Reference Part Numbers: Wossner Piston Kit Part No: 8117DB. Lock: CW15. Pin: WP032. Ring Set: RSB5400. Rod: P2019.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"54.00mm"},{"label":"Variant Id","value":"257471"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56417_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56417_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56417_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56417_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56417_4.jpg"],"description":"Wossner forged piston kit for high-performance two-stroke engines. This piston features an elliptical design for even heat expansion and uniform thrust load distribution, minimising localised pressure and supporting efficient heat transfer to cylinder walls. Precision-crafted in Germany, it enhances engine reliability by reducing the risk of mechanical failure. Features: Forged piston construction for high strength and durability. Elliptical shape distributes pressure evenly under heat expansion. Prevents piston collapse and enhances structural stability. Supports efficient combustion heat dissipation. Precision-crafted in Germany. Specifications: Bore Size: 54.01mm (+0.01mm oversize). Actual Diameter: 53.95mm. Compression Height: 28.00mm. Stroke: 54.50mm. Displacement: 124 cm&sup3;. Piston Clearance: 0.06mm. Compression Ratio: 2-stroke (Wossner and OEM). Cross-Reference Part Numbers: Wossner Piston Kit Part No: 8117DB. Lock: CW15. Pin: WP032. Ring Set: RSB5400. Rod: P2019.","descriptionMarkdown":"### Wossner Forged Piston Kit 54.01mm Oversize\n\nThis Wossner forged piston kit is precision-engineered for high-performance two-stroke engines. Manufactured in Germany, this piston features an advanced elliptical design specifically developed to manage heat expansion evenly. This innovative construction minimizes localized pressure points, ensures uniform distribution of thrust loads, and promotes efficient heat transfer to the cylinder walls. The result is a significant reduction in the risk of mechanical failure and an improvement in overall engine reliability.\n\n#### Key Features\n\n\t\n- Forged piston construction ensures exceptional strength and long-term durability.\n\t\n- Elliptical shape provides even pressure distribution during heat expansion.\n\t\n- Engineered to prevent piston collapse, enhancing structural stability.\n\t\n- Supports efficient dissipation of combustion heat for optimal performance.\n\t\n- Precision manufactured in Germany for uncompromising quality.\n\n#### Specifications\n\n\t\n- Bore Size: 54.01mm (0.01mm oversize)\n\t\n- Actual Diameter: 53.95mm\n\t\n- Compression Height: 28.00mm\n\t\n- Stroke: 54.50mm\n\t\n- Displacement: 124 cm&sup3;\n\t\n- Piston Clearance: 0.06mm\n\t\n- Compression Ratio: 2-stroke (Compatible with Wossner and OEM specifications)\n\n#### Included Components\n\n\t\n- Wossner Piston Kit Part Number: 8117DB\n\t\n- Lock: CW15\n\t\n- Pin: WP032\n\t\n- Ring Set: RSB5400","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YZ 125","cc":null,"notes":null,"years":"1997"}],"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-1997-yz125-5400-wossner-8117db-yamaha-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/89cf40db4121:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/89cf40db4121:1"}},"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."]}}