{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d667a0aab765","name":"REAR SPROCKET ALLOY RENTHAL, ULTRALITE 150U-520-51GBBU BLUE","sku":"SR245-51.REN.BE","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":5,"price":{"amount":50.87,"formatted":"£50.87"},"summary":"REAR SPROCKET ALLOY RENTHAL ULTRALITE 150U-520-51GBBU BLUE. Renthal's hard anodised rear chainwheels are specifically designed for road and road racing applications. They are CNC machined from 7075 T6 material and feature increased longevity from the hard anodizing process. Hard anodising is an integral surface coating which significantly increases the hardness and wear resistance of the chainwheel surface.","attributes":[{"label":"General Colour C","value":"Blue"},{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"278012"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-51_2EREN_2EBE/8afaca1d2dc8d34a.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-51_2EREN_2EBE/8afaca1d2dc8d34a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-51_2EREN_2EBE/c5b012b292a12f85.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-51_2EREN_2EBE/8f818eda8c1804d9.jpg"],"description":"REAR SPROCKET ALLOY RENTHAL ULTRALITE 150U-520-51GBBU BLUE. Renthal's hard anodised rear chainwheels are specifically designed for road and road racing applications. They are CNC machined from 7075 T6 material and feature increased longevity from the hard anodizing process. Hard anodising is an integral surface coating which significantly increases the hardness and wear resistance of the chainwheel surface.","descriptionMarkdown":"### Renthal Ultralite Alloy Rear Sprocket - Blue\n\nExperience enhanced durability and performance with the Renthal Ultralite Alloy Rear Sprocket. Designed specifically for road and road racing applications, this sprocket is precision CNC machined from high-strength 7075 T6 alloy, the same premium material used in Renthal's off-road chainwheels.\n\nThe key feature of this sprocket is its hard anodized finish. This integral surface coating significantly increases the hardness and wear resistance of the sprocket's surface, providing exceptional longevity and consistent performance throughout its lifespan.\n\n#### Key Features:\n\n \n- Material: 7075 T6 Alloy\n \n- Finish: Hard Anodised for increased wear resistance and longevity\n \n- Application: Specifically designed for road and road racing\n \n- Color: Blue\n \n- Sprocket Size: 520 Pitch, 51 Teeth","weightGrams":null,"fitments":[{"make":"HONDA","model":"XL 250","cc":null,"notes":null,"years":"1982–1987"},{"make":"HONDA","model":"XL 500","cc":null,"notes":null,"years":"1979–1984"},{"make":"HONDA","model":"XL 600","cc":null,"notes":null,"years":"1984–1994"},{"make":"HONDA","model":"XR 250","cc":null,"notes":null,"years":"1979–1983"},{"make":"HONDA","model":"XR 600R","cc":null,"notes":null,"years":"1983–1990"},{"make":"YAMAHA","model":"WR 250","cc":null,"notes":null,"years":"2000–2006"},{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2001–2019"},{"make":"YAMAHA","model":"WR 400F","cc":null,"notes":null,"years":"1999–2002"},{"make":"YAMAHA","model":"WR 426F","cc":null,"notes":null,"years":"1999–2002"},{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2003–2019"},{"make":"YAMAHA","model":"YZ 125","cc":null,"notes":null,"years":"1999–2020"},{"make":"YAMAHA","model":"YZ 250","cc":null,"notes":null,"years":"1977–2019"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2001–2019"},{"make":"YAMAHA","model":"YZ 400","cc":null,"notes":null,"years":"1977–2002"},{"make":"YAMAHA","model":"YZ 400F","cc":null,"notes":null,"years":"1999"},{"make":"YAMAHA","model":"YZ 426","cc":null,"notes":null,"years":"2000–2002"},{"make":"YAMAHA","model":"YZ 426F","cc":null,"notes":null,"years":"2000–2002"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2003–2019"}],"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-alloy-renthal-ultralite-150u-520-51gbbu-blue","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d667a0aab765:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d667a0aab765:1"}},"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."]}}