{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"5cd0a212b268","name":"REAR SPROCKET ALLOY RENTHAL, ULTRALITE 441U-428-50GPPE PURPLE","sku":"SR441-50.REN.PE","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":10,"price":{"amount":47.81,"formatted":"£47.81"},"summary":"Renthal Ultralite rear sprocket made from 7075 T6 aluminium with a hard anodised surface for increased wear resistance, strength, and longevity. Precision CNC machined for accurate fitment and efficient power transfer. Features include hard anodised surface, CNC machined 7075 T6 aluminium construction, 66% lighter than steel sprockets, tight tolerances for precise fitment and load dispersion, and engineered tooth profiling for maximum power transfer. Used extensively by professional race teams worldwide. Part No. SR441-50.REN.PE.","attributes":[],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR441-50_2EREN_2EPE/7d79ee24b34aaff5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR441-50_2EREN_2EPE/7d79ee24b34aaff5.jpg"],"description":"Renthal Ultralite rear sprocket made from 7075 T6 aluminium with a hard anodised surface for increased wear resistance, strength, and longevity. Precision CNC machined for accurate fitment and efficient power transfer. Features include hard anodised surface, CNC machined 7075 T6 aluminium construction, 66% lighter than steel sprockets, tight tolerances for precise fitment and load dispersion, and engineered tooth profiling for maximum power transfer. Used extensively by professional race teams worldwide. Part No. SR441-50.REN.PE.","descriptionMarkdown":"### Renthal Ultralite Rear Sprocket 50T 428 Pitch Purple\n\nEnhance your motorcycle's performance with the Renthal Ultralite Rear Sprocket. Engineered for durability and weight savings, this sprocket is a prime choice for riders seeking improved efficiency and longevity. Crafted from high-grade 7075 T6 aluminum, it offers a significant reduction in weight, boasting up to 66% less weight compared to traditional steel sprockets. The sprocket features a hard anodised surface treatment, which dramatically increases its hardness and resistance to wear, ensuring extended service life even under demanding conditions. Precision CNC machining guarantees exact dimensions, perfect concentricity for smooth operation, and optimized load distribution, leading to more efficient power transfer to the rear wheel.\n\n**Key Features:**\n\n \n- CNC machined from superior 7075 T6 aluminum for exceptional strength and lightness.\n \n- Hard anodised finish provides enhanced durability and superior wear resistance.\n \n- Significantly lighter than steel sprockets, contributing to reduced unsprung weight.\n \n- Engineered with tight tolerances for precise fitment and efficient load dispersion.\n \n- Optimized tooth profiling designed to maximize power transfer.\n \n- Trusted by professional race teams worldwide for peak performance.\n\n**Specifications:**\n\n \n- Type: Rear Sprocket\n \n- Material: 7075 T6 Aluminum\n \n- Surface Treatment: Hard Anodised\n \n- Chain Pitch: 428\n \n- Teeth: 50\n \n- Color: Purple","weightGrams":null,"fitments":[{"make":"GASGAS","model":"MC 85","cc":null,"notes":null,"years":"2021–2025"},{"make":"HUSQVARNA","model":"TC 85","cc":null,"notes":null,"years":"2014–2025"},{"make":"KTM","model":"105 SX","cc":null,"notes":null,"years":"2004–2011"},{"make":"KTM","model":"85 SX 17/14","cc":null,"notes":null,"years":"2003–2025"},{"make":"KTM","model":"85 SX 19/16","cc":null,"notes":null,"years":"2003–2025"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/rear-sprocket-alloy-renthal-ultralite-441u-428-50gppe-purple","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/5cd0a212b268:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/5cd0a212b268:1"}},"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."]}}