{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f03be2122b58","name":"REAR SPROCKET JTR1857.45 STEEL SR1857-45","sku":"SR437-45.S.JT","brand":"JT","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":21.13,"formatted":"£21.13"},"summary":"Rear sprocket JTR1857.45 made from C49 high-carbon steel for long wear. Precision manufacturing for exact OEM fit with a tooth count of 45 and 520 drive chain pitch. Black in color. Engineered for durability in street, track, and off-road use.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"278246"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR437-45_2ES_2EJT/473b71ffe36ca958.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR437-45_2ES_2EJT/473b71ffe36ca958.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR437-45_2ES_2EJT/9f2383d2d438d512.png"],"description":"Rear sprocket JTR1857.45 made from C49 high-carbon steel for long wear. Precision manufacturing for exact OEM fit with a tooth count of 45 and 520 drive chain pitch. Black in color. Engineered for durability in street, track, and off-road use.","descriptionMarkdown":"### JT Steel Rear Sprocket - 45 Tooth\n\nCrafted from premium C49 high-carbon steel, this JT Steel Rear Sprocket is engineered for superior durability and precision. It provides reliable power transfer and is designed to meet OEM standards for an exact fit.\n\n### Key Features:\n\n\t\n- Constructed from C49 high-carbon steel for extended wear life.\n\t\n- Precision manufactured to ensure an exact OEM fit.\n\t\n- Delivers consistent power transfer with accurate sprocket tooth profiles.\n\t\n- Engineered for robust performance in various riding conditions including street, track, and off-road environments.\n\n### Specifications:\n\n\t\n- Material: C49 high-carbon steel\n\t\n- Tooth Count: 45\n\t\n- Drive Chain Pitch: 520\n\t\n- Color: Black","weightGrams":null,"fitments":[],"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-jtr185745-steel-sr1857-45","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f03be2122b58:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f03be2122b58:1"}},"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."]}}