{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"923e2662c70a","name":"PISTON KIT 07-09 CRF150R 66 HC, WOSSNER 8662DA 12.5:1 COMP, 13101-KSE-670","sku":"56-W4924+00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":155.36,"formatted":"£155.36"},"summary":"Wossner 8662DA forged piston kit with a 66.00mm bore and 12.5:1 compression ratio for high-compression performance. Manufactured in Germany, this piston offers excellent durability, thermal performance, and strength. Its elliptical shape ensures uniform pressure distribution under expansion, minimizing stress and preventing piston collapse. Specifications include an actual bore diameter of 65.95 mm, displacement of 149 cm&sup3;, hub stroke of 43.70 mm, clearance of 0.05 mm, compression height of 20.60 mm, and a dome volume of -1.80 cm&sup3;. OEM compression ratio is 11.70:1. Cross-reference OEM part numbers: Piston 8662DA, Lock CW14, Pin WP058, Ring Set 660XKS, Rod P4024, Part No. 56-W4924+00A.WO, OEM Reference 13101-KSE-670.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66mm"},{"label":"Variant Id","value":"256391"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55337_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55337_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55337_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55337_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55337_4.jpg"],"description":"Wossner 8662DA forged piston kit with a 66.00mm bore and 12.5:1 compression ratio for high-compression performance. Manufactured in Germany, this piston offers excellent durability, thermal performance, and strength. Its elliptical shape ensures uniform pressure distribution under expansion, minimizing stress and preventing piston collapse. Specifications include an actual bore diameter of 65.95 mm, displacement of 149 cm&sup3;, hub stroke of 43.70 mm, clearance of 0.05 mm, compression height of 20.60 mm, and a dome volume of -1.80 cm&sup3;. OEM compression ratio is 11.70:1. Cross-reference OEM part numbers: Piston 8662DA, Lock CW14, Pin WP058, Ring Set 660XKS, Rod P4024, Part No. 56-W4924+00A.WO, OEM Reference 13101-KSE-670.","descriptionMarkdown":"### Wossner 66mm 12.5:1 Forged Piston Kit\n\n\tUpgrade your motorcycle's performance with this high-quality Wossner forged piston kit. Manufactured in Germany, this piston is engineered for exceptional durability and optimized for high-compression performance. The advanced elliptical design ensures uniform pressure distribution, enhancing strength and preventing piston collapse for reliable operation.\n\n#### Key Features:\n\n\t\n- High-compression forged piston for increased power and longevity\n\t\n- Designed for efficient heat transfer\n\t\n- Elliptical shape promotes uniform bearing surface under thermal expansion\n\t\n- Minimizes localized pressure to prevent piston failure\n\t\n- Made in Germany to exacting standards\n\n#### Specifications:\n\n\t\n- Bore: 66.00 mm\n\t\n- Actual Bore Diameter: 65.95 mm\n\t\n- Displacement: 149 cm&sup3;\n\t\n- Hub Stroke: 43.70 mm\n\t\n- Piston Clearance: 0.05 mm\n\t\n- Compression Height: 20.60 mm\n\t\n- Dome Volume: -1.80 cm&sup3;\n\t\n- Wossner Compression Ratio: 12.50:1\n\t\n- OEM Compression Ratio: 11.70:1\n\n#### Included Components:\n\n\t\n- Piston (Part Number: 8662DA)\n\t\n- Lock (Part Number: CW14)\n\t\n- Pin (Part Number: WP058)\n\t\n- Ring Set (Part Number: 660XKS)\n\t\n- Rod (Part Number: P4024)\n\n#### Cross-Reference OEM Part Numbers:\n\n\t\n- 13101-KSE-670","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-07-09-crf150r-66-hc-wossner-8662da-1251-comp-13101-kse-670","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/923e2662c70a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/923e2662c70a: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."]}}