{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c820db177262","name":"REAR SPROCKET STEEL HARD ZBK, C45 INDUCTIONJTR1304.43ZBK","sku":"SR1304-43.S.ZBK","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":23.87,"formatted":"£23.87"},"summary":"The next standard in MX durability and efficiency: 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 include a unique self-cleaning design that keeps the contact area clear, significantly reduced weight versus conventional steel rears, heat-induction hardened C45 steel construction, and it lasts up to 6 times longer than a 7075-aluminium sprocket. It greatly extends chain life by minimizing abrasive buildup and has optimized tooth geometry for smooth, efficient drive. Specifications include heat-induction hardened C45 steel material, 43 tooth count, 525 drive chain pitch, and black color.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"277357"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/833222bf865a9c1b.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/833222bf865a9c1b.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/fdb0afea13233c7b.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/d9c5cb08d2504ff6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/d4919cd6b9b2a861.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR1304-43_2ES_2EZBK/7cf3511248dff603.png"],"description":"The next standard in MX durability and efficiency: 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 include a unique self-cleaning design that keeps the contact area clear, significantly reduced weight versus conventional steel rears, heat-induction hardened C45 steel construction, and it lasts up to 6 times longer than a 7075-aluminium sprocket. It greatly extends chain life by minimizing abrasive buildup and has optimized tooth geometry for smooth, efficient drive. Specifications include heat-induction hardened C45 steel material, 43 tooth count, 525 drive chain pitch, and black color.","descriptionMarkdown":"### JT Rear Steel Hard Sprocket - Black\n\nExperience the next standard in motorcycle drivetrain durability and efficiency with this high-performance rear steel sprocket. Engineered with a unique self-cleaning profile, it effectively clears the contact patch while significantly reducing overall weight compared to conventional steel sprockets. The advanced heat-induction hardening process applied to the C45 steel construction ensures exceptional longevity, lasting up to six times longer than sprockets made from 7075 aluminum.\n\nThis sprocket is designed to protect your chain and optimize your riding performance. Its advanced material and design greatly extend chain life by minimizing abrasive buildup and feature optimized tooth geometry for smooth, efficient power transfer.\n\n#### Key Features:\n\n \n- Unique self-cleaning design maintains a clear contact area.\n \n- Significantly reduced weight compared to traditional steel rear sprockets.\n \n- Constructed from heat-induction hardened C45 steel for superior durability.\n \n- Offers up to 6 times longer lifespan than 7075-aluminum sprockets.\n \n- Enhances chain longevity by reducing abrasive buildup.\n \n- Optimized tooth geometry ensures smooth and efficient drive.\n\n#### Specifications:\n\n \n- Material: Heat-induction hardened C45 steel\n \n- Tooth Count: 43\n \n- Drive Chain Pitch: 525\n \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-inductionjtr130443zbk","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c820db177262:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c820db177262:1"}},"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."]}}