{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"7341dc9e88e1","name":"PISTON KIT 85-86 RM125 55.50, WOSSNER 8123D150 SUZUKI MX","sku":"56-W519+150.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":125.4,"formatted":"£125.40"},"summary":"Wossner forged piston kit for Suzuki RM125 1985-1986. Features 55.50 mm bore size and 55.44 mm actual piston diameter. Engineered to optimize combustion chamber heat transfer to cylinder walls. Elliptical design ensures uniform bearing surface under heat expansion, distributing thrust loads evenly and reducing piston collapse risk. Manufactured in Germany. Specifications include 123 cm&sup3; display, 54.00 mm stroke, 0.06 mm clearance, 29.50 mm compression height, and 2-stroke compression ratios (Wossner and OEM). Wossner Piston Part Number: 8123D150. Includes Lock Part Number: CW14, Pin Part Number: WP025, and Ring Set Part Number: RSB5550 x2. Alternate Part Number: 56-W519+150.WO. Weight: 192 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"55.5mm"},{"label":"Variant Id","value":"256670"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W519_2B150_2EWO/21da9e6fcf272e92.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W519_2B150_2EWO/21da9e6fcf272e92.jpg"],"description":"Wossner forged piston kit for Suzuki RM125 1985-1986. Features 55.50 mm bore size and 55.44 mm actual piston diameter. Engineered to optimize combustion chamber heat transfer to cylinder walls. Elliptical design ensures uniform bearing surface under heat expansion, distributing thrust loads evenly and reducing piston collapse risk. Manufactured in Germany. Specifications include 123 cm&sup3; display, 54.00 mm stroke, 0.06 mm clearance, 29.50 mm compression height, and 2-stroke compression ratios (Wossner and OEM). Wossner Piston Part Number: 8123D150. Includes Lock Part Number: CW14, Pin Part Number: WP025, and Ring Set Part Number: RSB5550 x2. Alternate Part Number: 56-W519+150.WO. Weight: 192 grams.","descriptionMarkdown":"### Wossner 55.50mm Piston Kit for Suzuki RM125 (1985-1986)\n\nEnhance the performance and durability of your Suzuki RM125 with this precision-engineered Wossner Piston Kit. Designed for models from 1985 to 1986, this kit features a forged piston construction for superior strength and longevity. The innovative design optimizes heat transfer from the combustion chamber to the cylinder walls, contributing to efficient operation. Its elliptical shape is engineered to maintain a uniform bearing surface, even under extreme heat expansion, which helps to evenly distribute thrust loads and significantly reduces the risk of piston collapse.\n\n**Key Features:**\n\n \n- Forged piston construction for enhanced durability and strength.\n \n- Engineered to optimize heat transfer from the combustion chamber.\n \n- Elliptical piston shape promotes even load distribution and reduces wear.\n \n- Manufactured to exacting standards in Germany for premium quality and precision.\n\n**Specifications:**\n\n \n- Bore Size: 55.50 mm\n \n- Actual Piston Diameter: 55.44 mm\n \n- Stroke: 54.00 mm\n \n- Clearance: 0.06 mm\n \n- Compression Height: 29.50 mm\n \n- Wossner Compression Ratio: 2-stroke\n \n- OEM Compression Ratio: 2-stroke\n\n**Included Components:**\n\n \n- Wossner Piston Part Number: 8123D150\n \n- Lock Part Number: CW14\n \n- Pin Part Number: WP025\n \n- Ring Set Part Number: RSB5550 (x2)\n \n- Alternate Part Number: 56-W519+","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-85-86-rm125-5550-wossner-8123d150-suzuki-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/7341dc9e88e1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/7341dc9e88e1:1"}},"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."]}}