{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c7ee7507d176","name":"CYLINDER KIT 89.00mm HONDA 96-14 TRX XR 400 SPORTRAX 12100-KCY-670","sku":"56-K900.KIT.BB","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":133.15,"formatted":"£133.15"},"summary":"This 89.00 mm, 440 cc big bore cylinder and piston kit is a direct OEM-replacement top-end solution. It includes all essential components required for installation, such as the cylinder, piston, piston rings, wristpin, two circlips, head gasket, base gasket, and two O-rings. The bore is 89.00 mm and the bore x stroke is 89.00 x 70.00 mm, retaining the stock stroke. Cross-reference OEM part numbers include 91302-500-000, 91302-216-000, 91301-MG2-791, 91301-MG2-790, 91301-428-003, 90601-KA5-000, 13111-KCY-670, 13103-KCY-670, 13101-KCY-670, 13021-KCY-670, 13011-KCY-670, 12251-HN1-003, 12191-KCY-672, 12100-KCY-670, and 12100-HN1-A70. This kit is for Honda XR400R, Sportrax 400 (TRX400EX), and TRX400X models.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"89mm"},{"label":"Variant Id","value":"314498"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K900_2EKIT_2EBB/5fcadaa60b99c381.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K900_2EKIT_2EBB/5fcadaa60b99c381.jpg"],"description":"This 89.00 mm, 440 cc big bore cylinder and piston kit is a direct OEM-replacement top-end solution. It includes all essential components required for installation, such as the cylinder, piston, piston rings, wristpin, two circlips, head gasket, base gasket, and two O-rings. The bore is 89.00 mm and the bore x stroke is 89.00 x 70.00 mm, retaining the stock stroke. Cross-reference OEM part numbers include 91302-500-000, 91302-216-000, 91301-MG2-791, 91301-MG2-790, 91301-428-003, 90601-KA5-000, 13111-KCY-670, 13103-KCY-670, 13101-KCY-670, 13021-KCY-670, 13011-KCY-670, 12251-HN1-003, 12191-KCY-672, 12100-KCY-670, and 12100-HN1-A70. This kit is for Honda XR400R, Sportrax 400 (TRX400EX), and TRX400X models.","descriptionMarkdown":"### Dirt Racing 440cc Big Bore Cylinder Kit for Honda\n\nUpgrade your Honda's engine performance with this 89.00 mm big bore cylinder and piston kit from Dirt Racing. Engineered as a direct OEM replacement, this kit provides a 440 cc capacity increase, delivering enhanced power and torque for your off-road adventures. This comprehensive top-end solution includes all the essential components needed for a straightforward installation.\n\n**Key Features:**\n\n\t\n- Bore Size: 89.00 mm\n\t\n- Engine Capacity: 440 cc Big Bore\n\t\n- Design: Direct OEM replacement\n\t\n- Included Components: Comes with all necessary parts for installation\n\t\n- Dimensions: Bore &times; stroke 89.00 &times; 70.00 mm (retains stock stroke)\n\n**Kit Contents:**\n\n\t\n- Cylinder\n\t\n- Piston\n\t\n- Piston rings\n\t\n- Wristpin\n\t\n- Circlips (2)\n\t\n- Head gasket\n\t\n- Base gasket\n\t\n- O-rings (2)\n\n**Cross-Reference OEM Part Numbers:**\n\n\t\n- 91302-500-000\n\t\n- 91302-216-000\n\t\n- 91301-MG2-791\n\t\n- 91301-MG2-790\n\t\n- 91301-428-003\n\t\n- 90601-KA5-000\n\t\n- 13111-KCY-670\n\t\n- 13103-KCY-670\n\t\n- 13101-KCY-670\n\t\n- 13021-KCY-670\n\t\n- 13011-KCY-670\n\t\n- 12251-HN1-003\n\t\n- 12191-KCY-672\n\t\n- 12100-KCY-670\n\t\n- 12100-HN1-A70","weightGrams":null,"fitments":[{"make":"HONDA","model":"TRX 400","cc":null,"notes":null,"years":"1999–2004"},{"make":"HONDA","model":"XR 400","cc":null,"notes":null,"years":"1996–2004"},{"make":"HONDA","model":"XR 400R","cc":null,"notes":null,"years":"1996–2004"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Cylinder Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/cylinder-kits"}],"links":{"page":"https://www.2brosparts.com/products/cylinder-kit-8900mm-honda-96-14-trx-xr-400-sportrax-12100-kcy-670","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c7ee7507d176:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c7ee7507d176:1"}},"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."]}}