{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ecc8233cf667","name":"FRONT SPROCKET JTF555 (428)","sku":"SF547-13.DR","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":17,"price":{"amount":4.45,"formatted":"£4.45"},"summary":"Front sprocket (JT Sprockets JTF555) with 13 teeth for 428-pitch chains. Designed for 420-to-428 heavy-duty conversion applications where a stronger 428 chain is preferred. Features include 13-tooth count for precise gearing, suitability for 428-pitch chain conversion from standard 420 set-ups, and a heavy-duty application for increased drivetrain robustness. Sprocket position is front, part reference is JTF555, chain pitch is 428, and tooth count is 13.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Front)"},{"label":"Variant Id","value":"276803"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SF547-13_2EDR/89a1d6c8b160527f.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SF547-13_2EDR/89a1d6c8b160527f.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SF547-13_2EDR/fa5472b535ed62f9.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SF547-13_2EDR/bd070371a7a5c74e.jpg"],"description":"Front sprocket (JT Sprockets JTF555) with 13 teeth for 428-pitch chains. Designed for 420-to-428 heavy-duty conversion applications where a stronger 428 chain is preferred. Features include 13-tooth count for precise gearing, suitability for 428-pitch chain conversion from standard 420 set-ups, and a heavy-duty application for increased drivetrain robustness. Sprocket position is front, part reference is JTF555, chain pitch is 428, and tooth count is 13.","descriptionMarkdown":"### Dirt Racing 13-Tooth 428 Pitch Front Sprocket (JTF555)\n\nEnhance your motorcycle's drivetrain with this 13-tooth front sprocket from Dirt Racing, part number JTF555. Designed for 428-pitch chains, this sprocket is ideal for heavy-duty conversion applications, offering increased robustness for your motorcycle's power delivery.\n\nThis sprocket is specifically recommended for converting standard 420 chain setups to a stronger 428 chain. This conversion is beneficial for small-bore motocross models that require a more durable chain and sprocket combination for demanding off-road use.\n\n**Key Features:**\n\n\t\n- 13-tooth count for precise gearing adjustments.\n\t\n- Optimized for 428-pitch chains, providing superior strength over 420 setups.\n\t\n- Engineered for heavy-duty conversion applications, enhancing drivetrain durability.\n\t\n- Designed as a direct replacement or upgrade for specific motorcycle models.\n\n**Specifications:**\n\n\t\n- Sprocket Position: Front\n\t\n- Manufacturer Part Reference: JTF555\n\t\n- Chain Pitch Compatibility: 428\n\t\n- Number of Teeth: 13\n\t\n- Material: High-quality steel for longevity and performance.","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KX 100","cc":null,"notes":null,"years":"1983–1997"},{"make":"KAWASAKI","model":"KX 60","cc":null,"notes":null,"years":"1983–1997"},{"make":"KAWASAKI","model":"KX 80","cc":null,"notes":null,"years":"1983–1997"},{"make":"KAWASAKI","model":"KX 85","cc":null,"notes":null,"years":"1983–1997, 2001–2020"}],"collections":[{"name":"Chain & Sprockets","url":"https://www.2brosparts.com/api/agent/collection/GB/chain-sprockets"},{"name":"Sprockets & Components (Front)","url":"https://www.2brosparts.com/api/agent/collection/GB/sprockets-components-front"}],"links":{"page":"https://www.2brosparts.com/products/front-sprocket-jtf555-428","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ecc8233cf667:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ecc8233cf667:1"}},"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."]}}