{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"24364f66fefa","name":"REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1306.42ZBK","sku":"SR1306-42.S.ZBK","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":26.69,"formatted":"£26.69"},"summary":"Unique self-cleaning steel rear sprocket with C45 induction hardened construction. Features a self-cleaning profile for a clear contact patch and reduced weight. Lasts up to six times longer than 7075 aluminium and extends chain life. Optimized tooth geometry for smooth drive. Specifications: Material Heat-induction hardened C45 steel, 42 teeth, 530 drive chain pitch, black color. Weight 762g. Manufacturer JT.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"277368"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-42_2ES_2EZBK/71738e31056ea0f8.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-42_2ES_2EZBK/71738e31056ea0f8.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1306-42_2ES_2EZBK/b6c2fff6b0786e0d.png"],"description":"Unique self-cleaning steel rear sprocket with C45 induction hardened construction. Features a self-cleaning profile for a clear contact patch and reduced weight. Lasts up to six times longer than 7075 aluminium and extends chain life. Optimized tooth geometry for smooth drive. Specifications: Material Heat-induction hardened C45 steel, 42 teeth, 530 drive chain pitch, black color. Weight 762g. Manufacturer JT.","descriptionMarkdown":"### JT Steel Rear Sprocket - Black - 42 Tooth\n\nExperience the next standard in motorcycle durability and efficiency with this JT Steel Rear Sprocket. Engineered for demanding riders, this sprocket offers superior longevity and performance, ensuring your chain and lap times benefit from its advanced design.\n\n**Key Features:**\n\n\t\n- Unique self-cleaning tooth profile that maintains a clear contact area for optimal performance.\n\t\n- Significantly reduced weight compared to conventional steel rear sprockets, enhancing overall efficiency.\n\t\n- Constructed from C45 steel that is heat-induction hardened for exceptional durability.\n\t\n- Designed to last up to six times longer than traditional 7075-aluminium sprockets.\n\t\n- Helps to greatly extend chain life by minimizing abrasive buildup.\n\t\n- Features optimized tooth geometry for a smooth and efficient drive transfer.\n\n**Specifications:**\n\n\t\n- Material: Heat-induction hardened C45 steel\n\t\n- Tooth Count: 42\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-inductionjtr130642zbk","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/24364f66fefa:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/24364f66fefa: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."]}}