{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ceb7ffb8c951","name":"REAR SPROCKET STEEL 52 [JTR301/210.52] 520, DOUBLE DRILLED JTR301, JTR210","sku":"SR301-52.S.DR","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":32,"price":{"amount":19.46,"formatted":"£19.46"},"summary":"The Rear Drive Sprocket SR301-52.S.DR is a 52-tooth steel sprocket designed for 520 chain systems. It features dual-hole mounting compatibility for Countersunk CSK 8.5 mm and CTB Plain 10.5 mm bolts. Constructed from C45 high-carbon steel, it is heat-treated and sandblasted to reduce surface tension. The sprocket is available in Powder Coated Black or Bright Zinc Plated Silver finishes. Key specifications include a tooth count of 52 and a chain size of 520. The part number is SR301-52.S.DR. Cross-reference OEM part numbers include JTR301.52, JTR210.52, and MX-80352 SILVER.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"278210"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock77456_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock77456_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock77456_2.jpg"],"description":"The Rear Drive Sprocket SR301-52.S.DR is a 52-tooth steel sprocket designed for 520 chain systems. It features dual-hole mounting compatibility for Countersunk CSK 8.5 mm and CTB Plain 10.5 mm bolts. Constructed from C45 high-carbon steel, it is heat-treated and sandblasted to reduce surface tension. The sprocket is available in Powder Coated Black or Bright Zinc Plated Silver finishes. Key specifications include a tooth count of 52 and a chain size of 520. The part number is SR301-52.S.DR. Cross-reference OEM part numbers include JTR301.52, JTR210.52, and MX-80352 SILVER.","descriptionMarkdown":"### Dirt Racing REAR SPROCKET STEEL 52\n\n\tEnhance your motorcycle's drivetrain with this high-quality 52-tooth rear steel sprocket from Dirt Racing. Designed for 520 chain applications, it offers exceptional durability and performance.\n\n**Key Features:**\n\n\t\n- Material: Constructed from C45 high-carbon steel for superior strength and longevity.\n\t\n- Durability Enhancements: Heat treated and sandblasted to reduce surface tension, increasing resistance to wear and fatigue.\n\t\n- Dual-Hole Mounting: Features a versatile dual-hole design to accommodate both Countersunk CSK 8.5 mm and CTB Plain 10.5 mm bolts, ensuring a secure fitment.\n\t\n- Finish Options: Available in a sleek Powder Coated Black or a corrosion-resistant Bright Zinc Plated Silver finish.\n\n**Specifications:**\n\n\t\n- Tooth Count: 52\n\t\n- Chain Size Compatibility: 520\n\t\n- Part Number: \n\n**Cross-Reference Part Numbers:**\n\n\t\n- JTR301.52\n\t\n- JTR210.52\n\t\n- MX-80352 SILVER","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF L 250","cc":null,"notes":null,"years":"2013–2016"},{"make":"HONDA","model":"XR 250","cc":null,"notes":null,"years":"1996–2004"},{"make":"HONDA","model":"XR 400","cc":null,"notes":null,"years":"1996–2005"}],"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-steel-52-jtr30121052-520-double-drilled-jtr301-jtr210","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ceb7ffb8c951:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ceb7ffb8c951:1"}},"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."]}}