{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"943c076a07f8","name":"PISTON KIT 89-99 RM125 55.00, WOSSNER 8055D100 SUZUKI MX","sku":"56-W641_100.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 with a 55.00mm bore for oversize applications. This piston is designed for maximum structural integrity, efficient heat transfer, and consistent performance. Its elliptical design ensures even pressure distribution and prevents piston failure under thermal stress. Manufactured in Germany to high standards of precision. Features forged construction for improved strength and service life, optimized heat transfer path from combustion chamber to cylinder walls, and elliptical geometry for even bearing surface under heat expansion. Specifications include a bore size of 55.00mm, actual piston size of 54.95mm, display capacity of 123 cm³, stroke of 54.00mm, clearance of 0.05mm, 2-stroke compression ratio for both Wossner and OEM, and compression height of 29.50mm. Cross-reference OEM part numbers include Piston Kit: 8055D100, Lock: CW15, Pin: WP032, Ring Set: RSB5550. Additional part number: 56-W641.C.WO. Weight: 184g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"55.00mm"},{"label":"Variant Id","value":"257210"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W641_5F100_2EWO/dc0ad63a6618a0c6.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W641_5F100_2EWO/dc0ad63a6618a0c6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W641_5F100_2EWO/d61384910d737c39.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W641_5F100_2EWO/eb3751eebb652021.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W641_5F100_2EWO/c0a1f0bd6d341a05.jpg"],"description":"Wossner forged piston kit with a 55.00mm bore for oversize applications. This piston is designed for maximum structural integrity, efficient heat transfer, and consistent performance. Its elliptical design ensures even pressure distribution and prevents piston failure under thermal stress. Manufactured in Germany to high standards of precision. Features forged construction for improved strength and service life, optimized heat transfer path from combustion chamber to cylinder walls, and elliptical geometry for even bearing surface under heat expansion. Specifications include a bore size of 55.00mm, actual piston size of 54.95mm, display capacity of 123 cm³, stroke of 54.00mm, clearance of 0.05mm, 2-stroke compression ratio for both Wossner and OEM, and compression height of 29.50mm. Cross-reference OEM part numbers include Piston Kit: 8055D100, Lock: CW15, Pin: WP032, Ring Set: RSB5550. Additional part number: 56-W641.C.WO. Weight: 184g.","descriptionMarkdown":"### Wossner Forged Piston Kit - Suzuki RM125 (1989-1999) - 55.00mm Oversize\n\nUpgrade your Suzuki RM125's performance with this high-quality Wossner forged piston kit. Designed for models from 1989 to 1999, this kit features a 55.00mm bore for oversize applications, providing enhanced power and durability. The advanced forged construction ensures superior strength and longevity, while the optimized heat transfer design promotes efficient cooling and consistent operation. Experience improved bearing surface integrity and resistance to thermal stress thanks to the piston's elliptical geometry. Precision manufactured in Germany, this Wossner piston kit is engineered for demanding off-road use.\n\n#### Key Features\n\n\t\n- Forged construction for enhanced strength and service life.\n\t\n- Optimized heat transfer path for efficient cooling.\n\t\n- Elliptical geometry for even bearing surface under thermal expansion.\n\t\n- Precision manufactured in Germany.\n\n#### Specifications\n\n\t\n- Bore Size: 55.00mm\n\t\n- Actual Piston Size: 54.95mm\n\t\n- Display Capacity: 123 cm&sup3;\n\t\n- Stroke: 54.00mm\n\t\n- Clearance: 0.05mm\n\t\n- Compression Ratio (Wossner): 2-stroke\n\t\n- Compression Ratio (OEM): 2-stroke\n\t\n- Compression Height: 29.50mm\n\n#### Kit Components & Cross-References\n\n\t\n- Piston Kit Part Number: 8055D100\n\t\n- Lock Ring: CW15\n\t\n- Piston Pin: WP032\n\t\n- Ring Set: RSB5550\n\t\n- Additional Part Number:","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-89-99-rm125-5500-wossner-8055d100-suzuki-mx","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/943c076a07f8:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/943c076a07f8:1"}},"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."]}}