{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c2c9c023055a","name":"REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1306.40ZBK","sku":"SR1306-40.S.ZBK","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":24.88,"formatted":"£24.88"},"summary":"The JT JTR1306.40ZBK rear sprocket is made from heat-induction hardened C45 steel and features a unique self-cleaning profile that keeps the contact patch clear while reducing weight. This construction lasts up to six times longer than 7075 aluminium, protecting your chain and improving efficiency. The sprocket has 40 teeth, a 530 drive chain pitch, and a black colour.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"277366"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-40_2ES_2EZBK/116a3f0609980c43.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-40_2ES_2EZBK/116a3f0609980c43.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-40_2ES_2EZBK/b6c2fff6b0786e0d.png"],"description":"The JT JTR1306.40ZBK rear sprocket is made from heat-induction hardened C45 steel and features a unique self-cleaning profile that keeps the contact patch clear while reducing weight. This construction lasts up to six times longer than 7075 aluminium, protecting your chain and improving efficiency. The sprocket has 40 teeth, a 530 drive chain pitch, and a black colour.","descriptionMarkdown":"### REAR SPROCKET STEEL HARD ZBK, C45 INDUCTION JTR1306.40ZBK\n\nExperience the next standard in off-road durability and efficiency with this high-performance rear sprocket. Its unique self-cleaning profile is engineered to keep the contact patch clear while significantly reducing overall weight. Crafted from heat-induction hardened C45 steel, this sprocket offers exceptional longevity, lasting up to six times longer than conventional 7075 aluminum sprockets. This superior durability not only protects your chain but also helps maintain optimal lap times.\n\n**Key Features:**\n\n\t\n- Unique self-cleaning design ensures the contact area remains clear for optimal performance.\n\t\n- Significantly reduced weight compared to traditional steel rear sprockets.\n\t\n- Constructed from durable heat-induction hardened C45 steel.\n\t\n- Offers an extended lifespan, up to 6 times longer than 7075 aluminum sprockets.\n\t\n- Maximizes chain life by minimizing abrasive buildup.\n\t\n- Features optimized tooth geometry for smooth and efficient power transfer.\n\n**Specifications:**\n\n\t\n- Material: Heat-induction hardened C45 steel\n\t\n- Tooth Count: 40\n\t\n- Drive Chain Pitch: 530\n\t\n- Color: Black","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"IT 465","cc":null,"notes":null,"years":"1980"},{"make":"YAMAHA","model":"IT G 250","cc":null,"notes":null,"years":"1980"},{"make":"YAMAHA","model":"YZ 250","cc":null,"notes":null,"years":"1977–2019"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"1979"},{"make":"YAMAHA","model":"YZ 400","cc":null,"notes":null,"years":"1977–2002"},{"make":"YAMAHA","model":"YZ 465","cc":null,"notes":null,"years":"1980–1982"}],"collections":[{"name":"Chain & Sprockets","url":"https://www.2brosparts.com/api/agent/collection/GB/chain-sprockets"},{"name":"Sprockets & Components (Rear)","url":"https://www.2brosparts.com/api/agent/collection/GB/sprockets-components-rear"}],"links":{"page":"https://www.2brosparts.com/products/rear-sprocket-steel-hard-zbk-c45-inductionjtr130640zbk","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c2c9c023055a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c2c9c023055a: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."]}}