{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b4b832fba81c","name":"REAR SPROCKET ALLOY RENTHAL 49T, 2025 GASGAS/HUSQVARNA/KTM, ULTRALITE 518U-420-49GPSI","sku":"SR518-49.REN","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":6,"price":{"amount":43.06,"formatted":"£43.06"},"summary":"Renthal Ultralite 518U rear sprocket, 49 tooth, 420 pitch. Precision CNC machined in Manchester, UK from 7075 T6 aluminium. Offers a weight reduction of 66% compared to steel alternatives. Engineered with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer and hard wearing surface treatment for extended durability.","attributes":[{"label":"Variant Id","value":"346819"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-49_2EREN/daf94993b26e60fd.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-49_2EREN/daf94993b26e60fd.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-49_2EREN/b28fd515707284f3.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR518-49_2EREN/3263e425bc415210.jpg"],"description":"Renthal Ultralite 518U rear sprocket, 49 tooth, 420 pitch. Precision CNC machined in Manchester, UK from 7075 T6 aluminium. Offers a weight reduction of 66% compared to steel alternatives. Engineered with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer and hard wearing surface treatment for extended durability.","descriptionMarkdown":"### Renthal Ultralite 518U Series 49 Tooth Rear Sprocket\n\nExperience superior performance and significant weight savings with the Renthal Ultralite 518U Series Rear Sprocket. Precision CNC machined in Manchester, UK, from high-strength 7075 T6 aluminium, this sprocket offers a remarkable 66% weight reduction compared to traditional steel alternatives.\n\nEngineered to exacting standards, the Ultralite sprocket features tight tolerances for accurate fitment and concentricity, ensuring optimal load dispersion and efficient power transfer. Its specially designed tooth profiling maximizes performance, while the hard-wearing surface treatment provides extended durability for demanding rides.\n\nThe Renthal Ultralite 518U Series is trusted by more factory race teams than any other aluminium sprocket brand, a testament to its quality and performance capabilities.\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- Trusted by leading factory race teams","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/rear-sprocket-alloy-renthal-49t-2025-gasgashusqvarnaktm-ultralite-518u-420-49gps","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b4b832fba81c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b4b832fba81c: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."]}}