{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"09e27b61397f","name":"REAR SPROCKET STEEL ULTRALIGHT, PROX 07.RS12087R-50 BLACK, SR210-50","sku":"SR210-50.S.PROX","brand":"Pro-X Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":47.62,"formatted":"£47.62"},"summary":"PROX Steel Rear Sprocket, ultralight, hardened steel, black. Manufactured from premium quality QSTE 420 & 460 high-strength steel for superior durability. Lasts 2-3 times longer than aluminum sprockets. This sprocket will fit most XL & XR bikes, requiring CSK head sprocket bolts as used on MX bikes. 50 teeth.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"277808"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR210-50_2ES_2EPROX/e8a0f56ee4e9be4b.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR210-50_2ES_2EPROX/e8a0f56ee4e9be4b.jpg"],"description":"PROX Steel Rear Sprocket, ultralight, hardened steel, black. Manufactured from premium quality QSTE 420 & 460 high-strength steel for superior durability. Lasts 2-3 times longer than aluminum sprockets. This sprocket will fit most XL & XR bikes, requiring CSK head sprocket bolts as used on MX bikes. 50 teeth.","descriptionMarkdown":"### ProX Ultralight Steel Rear Sprocket - Black\n\nEnhance your motorcycle's performance and durability with the ProX Ultralight Steel Rear Sprocket. Crafted from premium quality \"QSTE 420 & 460\" high-strength steel, this sprocket is engineered for superior longevity, offering 2-3 times the lifespan of traditional aluminum sprockets.\n\nDesigned for extreme riding conditions, this sprocket provides exceptional durability without compromising on weight. Its hardened steel construction ensures reliable performance mile after mile. The black finish adds a sleek, performance-oriented look to your motorcycle.\n\n#### Key Features:\n\n \n- Manufactured from premium quality \"QSTE 420 & 460\" high-strength steel.\n \n- Offers superior durability, lasting 2-3 times longer than aluminum sprockets.\n \n- Ultralight design for reduced rotational mass.\n \n- Hardened steel for exceptional wear resistance.\n \n- Sleek black finish.\n\n**Note:** This sprocket may require the use of CSK head sprocket bolts on certain XL & XR models, similar to MX bike applications.","weightGrams":null,"fitments":[{"make":"BETA","model":"RR 2T 250","cc":null,"notes":null,"years":"2013–2017"},{"make":"BETA","model":"RR 2T 300","cc":null,"notes":null,"years":"2013–2017"},{"make":"BETA","model":"RR ENDURO 2T 125","cc":null,"notes":null,"years":"2018–2025"},{"make":"BETA","model":"RR ENDURO 2T 200","cc":null,"notes":null,"years":"2019–2025"},{"make":"BETA","model":"RR ENDURO 2T 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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."]}}