{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"adadbdc0abe8","name":"REAR SPROCKET TWINRING YAM, RENTHAL 1500-520-52GPSI JTR251, 1500-520-52GPSI","sku":"SR245-52.REN.TR","brand":"Renthal","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":6,"price":{"amount":79.42,"formatted":"£79.42"},"summary":"RENTHAL TWIN RING CHAIN WHEEL REAR SPROCKET JTR251 1500-520-52GPSI. The longest lasting most durable off-road sprocket developed over 5 years. Features a unique flat face design keeping weight to a minimum and means the TwinRing is as narrow as a regular chainwheel. Inner Ring is high strength Ultralight 7075 T6 Aluminium. Outer Ring is Electroless Nickel Coated steel. Outer is expanded at 200 °C and then fitted to inner, creating a permanent bond.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"278032"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/b72d8f0481139339.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/b72d8f0481139339.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/0f66f5bafc4dacb3.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/efc10c4700ee0d21.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/98fedd57c535aa50.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR245-52_2EREN_2ETR/8f818eda8c1804d9.jpg"],"description":"RENTHAL TWIN RING CHAIN WHEEL REAR SPROCKET JTR251 1500-520-52GPSI. The longest lasting most durable off-road sprocket developed over 5 years. Features a unique flat face design keeping weight to a minimum and means the TwinRing is as narrow as a regular chainwheel. Inner Ring is high strength Ultralight 7075 T6 Aluminium. Outer Ring is Electroless Nickel Coated steel. Outer is expanded at 200 °C and then fitted to inner, creating a permanent bond.","descriptionMarkdown":"### Renthal Twin Ring Rear Sprocket\n\nThe Renthal Twin Ring Rear Sprocket is engineered for exceptional durability and longevity in off-road conditions, having undergone over 5 years of development. Its innovative flat face design minimizes weight while maintaining a narrow profile, comparable to standard chainwheels.\n\n**Key Features:**\n\n \n- Dual-Material Construction: Features an inner ring crafted from high-strength Ultralight 7075 T6 Aluminum and an outer ring made from Electroless Nickel Coated Steel.\n \n- Permanent Bond: The outer steel ring is heated to 200°C and then precisely fitted to the inner aluminum ring, creating a robust, permanent bond designed to last the sprocket's lifetime.\n \n- Durability: Developed to be the longest-lasting and most durable off-road sprocket available.\n \n- Weight Minimization: The unique flat face design contributes to a lightweight component.","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-twinring-yam-renthal-1500-520-52gpsi-jtr251-1500-520-52gpsi","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/adadbdc0abe8:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/adadbdc0abe8:1"}},"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."]}}