{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f5a1f0b6cd93","name":"PISTON KIT 1987 RM125 54.50, WOSSNER 8122D050 SUZUKI MX 12110-01B38-0F0","sku":"56-W557+050_WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":122.21,"formatted":"£122.21"},"summary":"This Wossner 54.50mm (+0.50 oversize) forged piston kit is designed for two-stroke engine performance. The piston features a forged design and elliptical profile to manage heat expansion and mechanical stress effectively. Manufactured in Germany, it ensures efficient heat transfer and even thrust load distribution to support engine durability under high operating conditions. This kit includes a forged piston, lock CW14, pin WP025, and two ring sets RSB5450. Specifications include a bore of 54.50mm, actual diameter of 54.44mm, displacement of 123 cm³, stroke of 70.00mm, clearance of 0.06mm, compression height of 37.00mm, and a 2-stroke compression ratio. The Wossner part number is 8122D050 and the OEM reference is 12110-01B38-0F0.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"54.5mm"},{"label":"Variant Id","value":"256796"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55742_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55742_1.jpg"],"description":"This Wossner 54.50mm (+0.50 oversize) forged piston kit is designed for two-stroke engine performance. The piston features a forged design and elliptical profile to manage heat expansion and mechanical stress effectively. Manufactured in Germany, it ensures efficient heat transfer and even thrust load distribution to support engine durability under high operating conditions. This kit includes a forged piston, lock CW14, pin WP025, and two ring sets RSB5450. Specifications include a bore of 54.50mm, actual diameter of 54.44mm, displacement of 123 cm³, stroke of 70.00mm, clearance of 0.06mm, compression height of 37.00mm, and a 2-stroke compression ratio. The Wossner part number is 8122D050 and the OEM reference is 12110-01B38-0F0.","descriptionMarkdown":"### Wossner 54.50mm Forged Piston Kit for Two-Stroke Engines\n\nEnhance your two-stroke engine's performance and durability with this Wossner forged piston kit. Engineered for precision and resilience, this kit is designed to meet the demanding conditions of high-performance riding.\n\n### Key Features\n\n\t\n- Forged Piston Construction: Offers superior strength and longevity compared to cast pistons, ensuring reliable performance under stress.\n\t\n- Elliptical Piston Profile: This advanced design adapts to thermal expansion, maintaining a uniform bearing surface and reducing mechanical stress for consistent operation.\n\t\n- Optimized Thrust Load Distribution: The piston's geometry ensures even distribution of forces, minimizing localized pressure points and preventing premature wear or failure.\n\t\n- Efficient Heat Transfer: Designed to effectively transfer combustion heat to the cylinder walls, aiding in temperature regulation and overall engine efficiency.\n\t\n- German Engineering: Manufactured in Germany, guaranteeing high standards of quality and precision in every component.\n\n### Technical Specifications\n\n\t\n- Bore Size: 54.50mm\n\t\n- Actual Piston Diameter: 54.44mm\n\t\n- Engine Displacement: 123 cm&sup3;\n\t\n- Stroke Length: 70.00mm\n\t\n- Recommended Piston Clearance: 0.06mm\n\t\n- Compression Height: 37.00mm\n\t\n- Compression Ratio Type: 2-stroke\n\n### Included Components\n\n\t\n- Piston Kit Part Number: 56-W557+\n\t\n- Wossner Piston Kit Number: 8122D050\n\t\n- Lock Ring: CW14\n\t\n- Piston Pin: WP025\n\t\n- Ring Set: RSB5450 (x2)\n\n### Cross-Reference OEM Part Number\n\n12110-01B38-0F0","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-1987-rm125-5450-wossner-8122d050-suzuki-mx-12110-01b38-0f0","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f5a1f0b6cd93:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f5a1f0b6cd93:1"}},"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."]}}