{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"bc35102bbfe1","name":"REAR SPROCKET ALLOY RENTHAL 50T, 2025 GASGAS/HUSQVARNA/KTM, ULTRALITE 518U-420-50GPSI","sku":"SR518-50.REN","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":43.06,"formatted":"£43.06"},"summary":"Renthal Ultralite 518U-420-50GPSI rear sprocket with 50 teeth, made from 7075 T6 aluminium. CNC machined in the UK with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer. 66% lighter than steel sprockets, with hard wearing surface treatment for extended durability. Used by more factory race teams than any other aluminium sprocket brand.","attributes":[{"label":"Variant Id","value":"346820"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-50_2EREN/911a53047e6645cc.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-50_2EREN/911a53047e6645cc.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-50_2EREN/f19bcefa778e23a5.jpg"],"description":"Renthal Ultralite 518U-420-50GPSI rear sprocket with 50 teeth, made from 7075 T6 aluminium. CNC machined in the UK with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer. 66% lighter than steel sprockets, with hard wearing surface treatment for extended durability. Used by more factory race teams than any other aluminium sprocket brand.","descriptionMarkdown":"### Renthal Ultralite 518U Alloy Rear Sprocket - 50 Tooth\n\nUpgrade your motorcycle's performance with the Renthal Ultralite 518U Alloy Rear Sprocket. This high-quality sprocket is precision CNC machined in Manchester, UK, from high-strength 7075 T6 aluminium. It offers a significant weight reduction of 66% compared to traditional steel sprockets, contributing to improved acceleration and handling.\n\nEngineered with extremely tight tolerances, this sprocket ensures accurate fitment and concentricity. Its computer-aided design optimizes load dispersion and tooth profiling, maximizing power transfer from your engine to the rear wheel. The hard-wearing surface treatment is applied for extended durability, ensuring a long service life even under demanding conditions. This is the same type of aluminium sprocket trusted and used by more factory race teams than any other brand.\n\n**Key Features:**\n\n\t\n- Manufactured from high-strength 7075 T6 aluminium\n\t\n- 66% lighter than equivalent steel sprockets\n\t\n- CNC machined to extremely tight tolerances\n\t\n- Computer-engineered for precise fitment and concentricity\n\t\n- Designed for optimal load dispersion and power transfer\n\t\n- Hard wearing surface treatment for extended durability\n\t\n- The choice of leading factory race teams","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/rear-sprocket-alloy-renthal-50t-2025-gasgashusqvarnaktm-ultralite-518u-420-50gps","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/bc35102bbfe1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/bc35102bbfe1:1"}},"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."]}}