{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"99acec913ad2","name":"REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1304.41ZBK","sku":"SR1304-41.S.ZBK","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":22.51,"formatted":"£22.51"},"summary":"A unique self-cleaning profile keeps the contact patch clear while trimming weight. Heat-induction hardened C45 steel lasts up to six times longer than 7075 aluminium, protecting your chain and your lap times. Features a unique self-cleaning design, significantly reduced weight versus conventional steel rears, heat-induction hardened C45 steel construction, and optimized tooth geometry for smooth, efficient drive. Lasts up to 6x longer than a 7075-aluminium sprocket and greatly extends chain life by minimizing abrasive buildup. Specifications include heat-induction hardened C45 steel material, 41 tooth count, 525 drive chain pitch, and black colour.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"277352"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-41_2ES_2EZBK/47fdca7844e27904.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-41_2ES_2EZBK/47fdca7844e27904.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-41_2ES_2EZBK/7cf3511248dff603.png"],"description":"A unique self-cleaning profile keeps the contact patch clear while trimming weight. Heat-induction hardened C45 steel lasts up to six times longer than 7075 aluminium, protecting your chain and your lap times. Features a unique self-cleaning design, significantly reduced weight versus conventional steel rears, heat-induction hardened C45 steel construction, and optimized tooth geometry for smooth, efficient drive. Lasts up to 6x longer than a 7075-aluminium sprocket and greatly extends chain life by minimizing abrasive buildup. Specifications include heat-induction hardened C45 steel material, 41 tooth count, 525 drive chain pitch, and black colour.","descriptionMarkdown":"### REAR SPROCKET STEEL HARD ZBK, C45 INDUCTION\n\nExperience the next standard in motorcycle durability and efficiency with this rear sprocket. Its unique self-cleaning profile actively keeps the contact patch clear, while also trimming weight for improved performance. Constructed from heat-induction hardened C45 steel, this sprocket is designed to last significantly longer than conventional aluminum sprockets, ultimately protecting your chain and enhancing your ride.\n\n**Key Features:**\n\n\t\n- Unique self-cleaning design maintains a clear contact area.\n\t\n- Offers a significantly reduced weight compared to conventional steel rear sprockets.\n\t\n- Built with heat-induction hardened C45 steel for superior strength.\n\t\n- Engineered to last up to six times longer than a 7075-aluminum sprocket.\n\t\n- Greatly extends chain life by minimizing abrasive buildup.\n\t\n- Features optimized tooth geometry for smooth and efficient drive power.\n\n**Specifications:**\n\n\t\n- Material: Heat-induction hardened C45 steel\n\t\n- Tooth Count: 41\n\t\n- Drive Chain Pitch: 525\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-inductionjtr130441zbk","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/99acec913ad2:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/99acec913ad2:1"}},"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."]}}