{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6264857f2526","name":"REAR SPROCKET BLACK ALLOY RENTHAL 46T, 2025 GASGAS/HUSQVARNA/KTM, ULTRALITE 518U-420-46GPBK","sku":"SR518-46.REN.BK","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":6,"price":{"amount":47.81,"formatted":"£47.81"},"summary":"Renthal Ultralite 518U-420-46GPBK rear sprocket. Black alloy construction with 46 teeth. Precision CNC machined in the UK from 7075 T6 aluminium. Offers a 66% weight reduction compared to steel alternatives. Engineered with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer. Hard wearing surface treatment for extended durability. Used by more factory race teams than any other aluminium sprocket brand.","attributes":[{"label":"Variant Id","value":"346826"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-46_2EREN_2EBK/b506c39693e276aa.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-46_2EREN_2EBK/b506c39693e276aa.png"],"description":"Renthal Ultralite 518U-420-46GPBK rear sprocket. Black alloy construction with 46 teeth. Precision CNC machined in the UK from 7075 T6 aluminium. Offers a 66% weight reduction compared to steel alternatives. Engineered with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer. Hard wearing surface treatment for extended durability. Used by more factory race teams than any other aluminium sprocket brand.","descriptionMarkdown":"### Renthal Ultralite 518U Series Rear Sprocket - 46 Tooth Black Alloy\n\nExperience superior performance and significant weight reduction with the Renthal Ultralite 518U Series Rear Sprocket. Precision CNC machined in Manchester, UK, from high-strength 7075 T6 aluminium, this sprocket offers an impressive 66% weight saving compared to traditional steel alternatives.\n\nEngineered with exceptionally tight tolerances, the Ultralite sprocket ensures accurate fitment and optimal concentricity. Its computer-aided design features optimized tooth profiling for maximum power transfer and superior load dispersion. A hard-wearing surface treatment enhances durability, providing extended service life. Chosen by more factory race teams than any other aluminium sprocket brand, Renthal delivers proven performance.\n\n**Key Features:**\n\n \n- Manufactured from high-strength 7075 T6 aluminium.\n \n- 66% lighter than equivalent steel sprockets.\n \n- CNC machined to extremely tight tolerances for precise fitment.\n \n- Computer-engineered for optimal load dispersion and power transfer.\n \n- Hard wearing surface treatment for extended durability.\n \n- Trusted by leading factory race teams for race-winning performance.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/rear-sprocket-black-alloy-renthal-46t-2025-gasgashusqvarnaktm-ultralite-518u-420","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6264857f2526:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6264857f2526:1"}},"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."]}}