{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"d63ac8572455","name":"REAR SPROCKET ALLOY 51 [JTR897.51] 520, SILVER","sku":"SR990-51.A.DR","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":7,"price":{"amount":20.69,"formatted":"£20.69"},"summary":"REAR SPROCKET ALLOY 51 TEETH 520 CHAIN SIZE SILVER. Made with 6065-T6 Aluminum. Meets or exceeds the highest-quality compound standards set by the motorcycle industry. Finished in silver. Part No. SR990-51.DR. Cross reference numbers: JTA897.51, JTA990.51.","attributes":[{"label":"General Product Group","value":"Chain & Sprockets"},{"label":"General Product Type","value":"Sprockets & Components (Rear)"},{"label":"Variant Id","value":"279474"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR990-51_2EA_2EDR/2a94daabf3ba4a0f.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR990-51_2EA_2EDR/2a94daabf3ba4a0f.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/SR990-51_2EA_2EDR/de421ddcb1048c2d.jpg"],"description":"REAR SPROCKET ALLOY 51 TEETH 520 CHAIN SIZE SILVER. Made with 6065-T6 Aluminum. Meets or exceeds the highest-quality compound standards set by the motorcycle industry. Finished in silver. Part No. SR990-51.DR. Cross reference numbers: JTA897.51, JTA990.51.","descriptionMarkdown":"### REAR SPROCKET ALLOY 51 TEETH SILVER 520 CHAIN\n\nUpgrade your motorcycle's performance with this high-quality rear alloy sprocket. Designed for durability and precision, this sprocket features 51 teeth and a 520 chain size, finished in an attractive silver color.\n\n### Key Features:\n\n \n- Material: Constructed from strong 6065-T6 Aluminum for excellent strength-to-weight ratio and longevity.\n \n- High Standards: Manufactured to meet or exceed the highest quality compound standards within the motorcycle industry.\n \n- Color: Features a sleek silver finish for a stylish look.\n \n- Teeth Count: 51 teeth, offering a specific gear ratio for your riding needs.\n \n- Chain Compatibility: Designed for use with 520 pitch chains.\n \n- Quality Assurance: This is a high-quality replacement part guaranteed for your satisfaction.\n\nThis rear sprocket is an ideal choice for riders seeking a reliable and performance-oriented component for their motorcycle.","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2021–2025"},{"make":"GAS-GAS","model":"EC F 350","cc":null,"notes":null,"years":"2021–2025"},{"make":"GAS-GAS","model":"EC F 450","cc":null,"notes":null,"years":"2024–2025"},{"make":"GAS-GAS","model":"EC F 500","cc":null,"notes":null,"years":"2024–2025"},{"make":"GAS-GAS","model":"EX 250","cc":null,"notes":null,"years":"2023–2025"},{"make":"GAS-GAS","model":"EX F 250","cc":null,"notes":null,"years":"2021–2025"},{"make":"GAS-GAS","model":"EX F 350","cc":null,"notes":null,"years":"2021–2025"},{"make":"GAS-GAS","model":"EX F 450","cc":null,"notes":null,"years":"2021–2024"},{"make":"GAS-GAS","model":"MC 150","cc":null,"notes":null,"years":"2025"},{"make":"GAS-GAS","model":"MC 300","cc":null,"notes":null,"years":"2025"},{"make":"GAS-GAS","model":"MC F 250","cc":null,"notes":null,"years":"2021–2025"},{"make":"GAS-GAS","model":"MC F 350","cc":null,"notes":null,"years":"2023–2025"},{"make":"GAS-GAS","model":"MC F 450","cc":null,"notes":null,"years":"2021–2025"},{"make":"GASGAS","model":"EC 250","cc":null,"notes":null,"years":"2021–2025"},{"make":"GASGAS","model":"EC 300","cc":null,"notes":null,"years":"2021–2025"},{"make":"GASGAS","model":"EX 250","cc":null,"notes":null,"years":"2022"},{"make":"GASGAS","model":"EX 300","cc":null,"notes":null,"years":"2021–2025"},{"make":"GASGAS","model":"MC 125","cc":null,"notes":null,"years":"2021–2025"},{"make":"GASGAS","model":"MC 250","cc":null,"notes":null,"years":"2022–2025"},{"make":"HUSABERG","model":"FE 250","cc":null,"notes":null,"years":"2013–2014"},{"make":"HUSABERG","model":"FE 350","cc":null,"notes":null,"years":"2013–2014"},{"make":"HUSABERG","model":"FE 390","cc":null,"notes":null,"years":"2010–2012"},{"make":"HUSABERG","model":"FE 450","cc":null,"notes":null,"years":"2004–2014"},{"make":"HUSABERG","model":"FE 501","cc":null,"notes":null,"years":"2013–2015"},{"make":"HUSABERG","model":"FE 550","cc":null,"notes":null,"years":"2004–2008"},{"make":"HUSABERG","model":"FE 570","cc":null,"notes":null,"years":"2009–2012"},{"make":"HUSABERG","model":"FE 650","cc":null,"notes":null,"years":"2004–2008"},{"make":"HUSABERG","model":"FS 650","cc":null,"notes":null,"years":"2004–2008"},{"make":"HUSABERG","model":"FX 450","cc":null,"notes":null,"years":"2010–2012"},{"make":"HUSABERG","model":"TE 125","cc":null,"notes":null,"years":"2012–2014"},{"make":"HUSABERG","model":"TE 250","cc":null,"notes":null,"years":"2011–2014"},{"make":"HUSABERG","model":"TE 300","cc":null,"notes":null,"years":"2011–2014"},{"make":"HUSQVARNA","model":"FC 250","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FC 350","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FC 450","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FE 250","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FE 350","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FE 450","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FE 501","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"FS 450","cc":null,"notes":null,"years":"2015–2025"},{"make":"HUSQVARNA","model":"FX 350","cc":null,"notes":null,"years":"2017–2025"},{"make":"HUSQVARNA","model":"FX 450","cc":null,"notes":null,"years":"2017–2025"},{"make":"HUSQVARNA","model":"TC 125","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"TC 250","cc":null,"notes":null,"years":"2014–2020"},{"make":"HUSQVARNA","model":"TC 2T 250","cc":null,"notes":null,"years":"2014–2025"},{"make":"HUSQVARNA","model":"TC 300","cc":null,"notes":null,"years":"2025"},{"make":"HUSQVARNA","model":"TE 125","cc":null,"notes":null,"years":"2014–2016"},{"make":"HUSQVARNA","model":"TE 150","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"TE 150I","cc":null,"notes":null,"years":"2020–2025"},{"make":"HUSQVARNA","model":"TE 250i","cc":null,"notes":null,"years":"2018–2021"},{"make":"HUSQVARNA","model":"TE 250I","cc":null,"notes":null,"years":"2022–2025"},{"make":"HUSQVARNA","model":"TE 2T 250","cc":null,"notes":null,"years":"2014–2020"},{"make":"HUSQVARNA","model":"TE 300","cc":null,"notes":null,"years":"2014–2018"},{"make":"HUSQVARNA","model":"TE 300i","cc":null,"notes":null,"years":"2018–2021"},{"make":"HUSQVARNA","model":"TE 300I","cc":null,"notes":null,"years":"2022–2025"},{"make":"HUSQVARNA","model":"TX 125","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"TX 300","cc":null,"notes":null,"years":"2017–2019"},{"make":"HUSQVARNA","model":"TX 300I","cc":null,"notes":null,"years":"2020–2025"},{"make":"KTM","model":"125 EXC","cc":null,"notes":null,"years":"1990–2017"},{"make":"KTM","model":"125 SX","cc":null,"notes":null,"years":"1990–2025"},{"make":"KTM","model":"125 XC-W","cc":null,"notes":null,"years":"2017–2019"},{"make":"KTM","model":"144 SX","cc":null,"notes":null,"years":"2008"},{"make":"KTM","model":"150 EXC TPI","cc":null,"notes":null,"years":"2020–2025"},{"make":"KTM","model":"150 SX","cc":null,"notes":null,"years":"2009–2025"},{"make":"KTM","model":"150 XC","cc":null,"notes":null,"years":"2009–2017"},{"make":"KTM","model":"150 XC-W","cc":null,"notes":null,"years":"2017–2019"},{"make":"KTM","model":"200 EXC","cc":null,"notes":null,"years":"1998–2017"},{"make":"KTM","model":"200 SX","cc":null,"notes":null,"years":"1998–2017"},{"make":"KTM","model":"200 XC","cc":null,"notes":null,"years":"2009–2017"},{"make":"KTM","model":"200 XC-W","cc":null,"notes":null,"years":"2011–2017"},{"make":"KTM","model":"200 XCW","cc":null,"notes":null,"years":"2009–2010"},{"make":"KTM","model":"250 EXC","cc":null,"notes":null,"years":"1990–2017"},{"make":"KTM","model":"250 EXC Racing","cc":null,"notes":"1st Filter","years":"2003–2006"},{"make":"KTM","model":"250 EXC RACING","cc":null,"notes":null,"years":"2001–2002"},{"make":"KTM","model":"250 EXC TPI","cc":null,"notes":null,"years":"2018–2025"},{"make":"KTM","model":"250 EXC-F","cc":null,"notes":null,"years":"2006–2025"},{"make":"KTM","model":"250 SX","cc":null,"notes":null,"years":"1990–2025"},{"make":"KTM","model":"250 SX-F","cc":null,"notes":null,"years":"2006–2025"},{"make":"KTM","model":"250 XC","cc":null,"notes":null,"years":"1990–2020"},{"make":"KTM","model":"250 XC-F","cc":null,"notes":null,"years":"2012–2020"},{"make":"KTM","model":"250 XC-W","cc":null,"notes":null,"years":"2018"},{"make":"KTM","model":"300 EXC","cc":null,"notes":null,"years":"1990–2017"},{"make":"KTM","model":"300 EXC TPI","cc":null,"notes":null,"years":"2018–2025"},{"make":"KTM","model":"300 SX","cc":null,"notes":null,"years":"2023–2025"},{"make":"KTM","model":"300 XC TPI 2T","cc":null,"notes":null,"years":"2020"},{"make":"KTM","model":"300 XC-W TPI","cc":null,"notes":null,"years":"2020"},{"make":"KTM","model":"350 EXC-F","cc":null,"notes":null,"years":"2011–2025"},{"make":"KTM","model":"350 SX-F","cc":null,"notes":null,"years":"2011–2025"},{"make":"KTM","model":"350 XC-F","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"360 EXC","cc":null,"notes":null,"years":"1996–1997"},{"make":"KTM","model":"360 SX","cc":null,"notes":null,"years":"1996–1997"},{"make":"KTM","model":"380 EXC","cc":null,"notes":null,"years":"1998–2002"},{"make":"KTM","model":"380 SX","cc":null,"notes":null,"years":"1998–2002"},{"make":"KTM","model":"400 EXC","cc":null,"notes":null,"years":"1996–1999, 2008–2016"},{"make":"KTM","model":"400 EXC","cc":null,"notes":"1st Filter (Long)","years":"2000–2005"},{"make":"KTM","model":"400 EXC","cc":null,"notes":"1st Filter","years":"2006–2007"},{"make":"KTM","model":"400 LC-4","cc":null,"notes":null,"years":"1998–2000"},{"make":"KTM","model":"400 LC4","cc":null,"notes":null,"years":"2001"},{"make":"KTM","model":"400 SX","cc":null,"notes":null,"years":"1999–2002"},{"make":"KTM","model":"450 EXC","cc":null,"notes":null,"years":"1999, 2008–2017"},{"make":"KTM","model":"450 EXC","cc":null,"notes":"1st Filter (Long)","years":"2000–2007"},{"make":"KTM","model":"450 EXC R","cc":null,"notes":null,"years":"2008–2011"},{"make":"KTM","model":"450 EXC Racing","cc":null,"notes":"1st Filter","years":"2003–2007"},{"make":"KTM","model":"450 EXC-F","cc":null,"notes":null,"years":"2017–2025"},{"make":"KTM","model":"450 EXC-R","cc":null,"notes":null,"years":"2008–2011"},{"make":"KTM","model":"450 SM-R","cc":null,"notes":null,"years":"2004, 2021–2023"},{"make":"KTM","model":"450 SMR","cc":null,"notes":null,"years":"2005–2014, 2024–2025"},{"make":"KTM","model":"450 SX","cc":null,"notes":"1st Filter","years":"2003–2006"},{"make":"KTM","model":"450 SX-F","cc":null,"notes":null,"years":"2007–2025"},{"make":"KTM","model":"450 SXF","cc":null,"notes":"1st Filter (Long)","years":"2004–2006"},{"make":"KTM","model":"450 XC-F","cc":null,"notes":null,"years":"2018–2020"},{"make":"KTM","model":"500 EXC","cc":null,"notes":null,"years":"2012–2017"},{"make":"KTM","model":"500 EXC-F","cc":null,"notes":null,"years":"2013–2025"},{"make":"KTM","model":"500 XC-F","cc":null,"notes":null,"years":"2013"},{"make":"KTM","model":"500 XC-W","cc":null,"notes":null,"years":"2013"},{"make":"KTM","model":"505 SX-F","cc":null,"notes":null,"years":"2008–2009"},{"make":"KTM","model":"505 XC-F","cc":null,"notes":null,"years":"2009"},{"make":"KTM","model":"520 EXC","cc":null,"notes":"1st Filter (Long)","years":"2000–2002"},{"make":"KTM","model":"520 SX","cc":null,"notes":"1st Filter","years":"1999–2006"},{"make":"KTM","model":"520 SX 4T","cc":null,"notes":null,"years":"1999–2006"},{"make":"KTM","model":"525 EXC","cc":null,"notes":null,"years":"1999, 2008–2016"},{"make":"KTM","model":"525 EXC","cc":null,"notes":"1st Filter (Long)","years":"2000–2002"},{"make":"KTM","model":"525 EXC","cc":null,"notes":"1st Filter","years":"2003–2007"},{"make":"KTM","model":"525 EXC RACING","cc":null,"notes":null,"years":"2003–2007"},{"make":"KTM","model":"525 SM-R","cc":null,"notes":null,"years":"2004–2005"},{"make":"KTM","model":"525 SX","cc":null,"notes":null,"years":"1999–2002"},{"make":"KTM","model":"525 SX","cc":null,"notes":"1st Filter","years":"2003–2006"},{"make":"KTM","model":"525 SX 4T","cc":null,"notes":null,"years":"1999–2006"},{"make":"KTM","model":"530 EXC","cc":null,"notes":null,"years":"2008–2012"},{"make":"KTM","model":"530 EXC-R","cc":null,"notes":null,"years":"2008–2011"},{"make":"KTM","model":"560 SMR","cc":null,"notes":null,"years":"2006–2007"},{"make":"KTM","model":"600 LC-4","cc":null,"notes":null,"years":"1990–1993"},{"make":"KTM","model":"620 LC4, DUKE","cc":null,"notes":null,"years":"1994–2001"},{"make":"KTM","model":"620 SC","cc":null,"notes":null,"years":"1994–2001"},{"make":"KTM","model":"620 SX","cc":null,"notes":null,"years":"1994–2005"},{"make":"KTM","model":"625 SXC","cc":null,"notes":null,"years":"2002–2007"},{"make":"KTM","model":"640 LC4, DUKE II","cc":null,"notes":null,"years":"1998–2007"},{"make":"KTM","model":"690 ENDURO","cc":null,"notes":null,"years":"2008–2010"},{"make":"KTM","model":"690 Enduro R","cc":null,"notes":null,"years":"2009–2011"},{"make":"KTM","model":"690 SMC","cc":null,"notes":null,"years":"2008–2011"},{"make":"KTM","model":"690 SUPERMOTO","cc":null,"notes":null,"years":"2007–2009"},{"make":"STARK","model":"VARG ELECTRIC","cc":null,"notes":null,"years":"2023–2025"},{"make":"TRIUMPH","model":"TF -RC 450","cc":null,"notes":null,"years":"2025"},{"make":"TRIUMPH","model":"TF -X 250","cc":null,"notes":null,"years":"2024"}],"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-51-jtr89751-520-silver","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/d63ac8572455:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/d63ac8572455:1"}},"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."]}}