{"product_id":"dirt-tricks-49-tooth-zirconium-rear-sprocket-bt-49-z-c-for-beta-520-chain-models","title":"Dirt Tricks 49-Tooth Zirconium Rear Sprocket BT-49-Z-C for Beta 520 Chain Models","description":"\u003cp\u003eThe Dirt Tricks BT-49-Z-C Rear Sprocket is a 49-tooth, 520-chain sprocket designed for demanding off-road use. Manufactured by Dirt Tricks, this Chromatic sprocket combines chromoly steel and zirconium construction to deliver high strength, reduced weight, and long service life. Its unique minimalist design provides a performance-focused alternative to conventional aluminum and stainless-steel sprockets.\u003c\/p\u003e\u003cp\u003eDeveloped by Dirt Tricks president and engineer Greg Burns, the sprocket reflects expertise in aerospace-grade steels, heat treatment, and FEA stress analysis. The zirconium coating helps reduce friction by up to 50 percent while improving durability and providing a distinctive Chromatic finish. Dirt Tricks rear sprockets are engineered to be 2.5 times stronger than stainless steel and are backed by a one-year replacement guarantee if the sprocket wears out.\u003c\/p\u003e\u003cp\u003eFitment includes 2015–2017 Beta 300 Xtrainer models and 2013–2017 Beta 250 RR 2T models, as well as 2013–2014 Beta 300 RR 2T models. Verify the motorcycle model, year, chain size, tooth count, and mounting pattern before installation. This product is identified by Dirt Tricks manufacturer part number BT-49-Z-C and vendor part number BT-49-Z-C.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e49-tooth rear sprocket designed for 520 chain applications\u003c\/li\u003e\n\u003cli\u003eChromoly steel and zirconium construction for strength, durability, and reduced weight\u003c\/li\u003e\n\u003cli\u003eChromatic finish with zirconium coating that reduces friction by up to 50 percent\u003c\/li\u003e\n\u003cli\u003eMinimalist Dirt Tricks design engineered for demanding off-road riding\u003c\/li\u003e\n\u003cli\u003e2.5 times stronger than stainless steel according to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003eFits 2015–2017 Beta 300 Xtrainer models\u003c\/li\u003e\n\u003cli\u003eFits 2013–2017 Beta 250 RR 2T models\u003c\/li\u003e\n\u003cli\u003eFits 2013–2014 Beta 300 RR 2T models\u003c\/li\u003e\n\u003cli\u003eManufacturer and vendor part number: BT-49-Z-C\u003c\/li\u003e\n\u003cli\u003eBacked by Dirt Tricks' one-year replacement guarantee if worn out\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2013 Beta 250 RR (2T)\u003cbr\u003e\n2013 Beta 300 RR (2t)\u003cbr\u003e\n2013 Beta 350 RR\u003cbr\u003e\n2013 Beta 350 RS\u003cbr\u003e\n2013 Beta 400 RR\u003cbr\u003e\n2013 Beta 450 RR\u003cbr\u003e\n2013 Beta 450 RS\u003cbr\u003e\n2013 Beta 498 RR\u003cbr\u003e\n2014 Beta 250 RR (2T)\u003cbr\u003e\n2014 Beta 300 RR (2t)\u003cbr\u003e\n2014 Beta 350 RR\u003cbr\u003e\n2014 Beta 400 RR\u003cbr\u003e\n2014 Beta 400 RS\u003cbr\u003e\n2014 Beta 450 RR\u003cbr\u003e\n2014 Beta 450 RS\u003cbr\u003e\n2014 Beta 498 RR\u003cbr\u003e\n2015 Beta 250 RR (2T)\u003cbr\u003e\n2015 Beta 250 RR (RE)\u003cbr\u003e\n2015 Beta 300 RR (2t)\u003cbr\u003e\n2015 Beta 300 Xtrainer\u003cbr\u003e\n2015 Beta 350 RR\u003cbr\u003e\n2015 Beta 390 RR\u003cbr\u003e\n2015 Beta 390 RS\u003cbr\u003e\n2015 Beta 430 RR\u003cbr\u003e\n2015 Beta 430 RS\u003cbr\u003e\n2015 Beta 450 RR\u003cbr\u003e\n2015 Beta 480 RR\u003cbr\u003e\n2015 Beta 500 RS\u003cbr\u003e\n2016 Beta 250 RR (2T)\u003cbr\u003e\n2016 Beta 250 RR (RE)\u003cbr\u003e\n2016 Beta 300 RR (2t)\u003cbr\u003e\n2016 Beta 300 Xtrainer\u003cbr\u003e\n2016 Beta 350 RR\u003cbr\u003e\n2016 Beta 390 RR\u003cbr\u003e\n2016 Beta 390 RS\u003cbr\u003e\n2016 Beta 430 RR\u003cbr\u003e\n2016 Beta 430 RS\u003cbr\u003e\n2016 Beta 450 RR\u003cbr\u003e\n2016 Beta 480 RR\u003cbr\u003e\n2016 Beta 500 RS\u003cbr\u003e\n2017 Beta 250 RR (2T)\u003cbr\u003e\n2017 Beta 250 RR (RE)\u003cbr\u003e\n2017 Beta 300 RR (2t)\u003cbr\u003e\n2017 Beta 300 RR (RE)\u003cbr\u003e\n2017 Beta 300 Xtrainer\u003cbr\u003e\n2017 Beta 350 RR\u003cbr\u003e\n2017 Beta 350 RR (RE)\u003cbr\u003e\n2017 Beta 390 RR\u003cbr\u003e\n2017 Beta 390 RR (RE)\u003cbr\u003e\n2017 Beta 430 RR\u003cbr\u003e\n2017 Beta 430 RR (RE)\u003cbr\u003e\n2017 Beta 450 RR\u003cbr\u003e\n2017 Beta 480 RR\u003cbr\u003e\n2017 Beta 480 RR (RE)\u003cbr\u003e\n2017 Beta 498 RR\u003cbr\u003e\n2018 Beta 250 RR (2T)\u003cbr\u003e\n2018 Beta 250 RR (RE)\u003cbr\u003e\n2018 Beta 300 RR (2t)\u003cbr\u003e\n2018 Beta 300 RR (RE)\u003cbr\u003e\n2018 Beta 300 Xtrainer\u003cbr\u003e\n2018 Beta 350 RR\u003cbr\u003e\n2018 Beta 350 RR (RE)\u003cbr\u003e\n2018 Beta 390 RR\u003cbr\u003e\n2018 Beta 390 RR (RE)\u003cbr\u003e\n2018 Beta 430 RR\u003cbr\u003e\n2018 Beta 430 RR (RE)\u003cbr\u003e\n2018 Beta 450 RR\u003cbr\u003e\n2018 Beta 480 RR\u003cbr\u003e\n2018 Beta 480 RR (RE)\u003cbr\u003e\n2018 Beta 498 RR\u003cbr\u003e\n2019 Beta 250 RR (2T)\u003cbr\u003e\n2019 Beta 250 RR (RE)\u003cbr\u003e\n2019 Beta 300 RR (2t)\u003cbr\u003e\n2019 Beta 300 RR (RE)\u003cbr\u003e\n2019 Beta 300 Xtrainer\u003cbr\u003e\n2019 Beta 350 RR\u003cbr\u003e\n2019 Beta 350 RR (RE)\u003cbr\u003e\n2019 Beta 390 RR\u003cbr\u003e\n2019 Beta 390 RR (RE)\u003cbr\u003e\n2019 Beta 430 RR\u003cbr\u003e\n2019 Beta 430 RR (RE)\u003cbr\u003e\n2019 Beta 450 RR\u003cbr\u003e\n2019 Beta 480 RR\u003cbr\u003e\n2019 Beta 480 RR (RE)\u003cbr\u003e\n2019 Beta 498 RR\u003cbr\u003e\n2020 Beta 250 RR (2T)\u003cbr\u003e\n2020 Beta 250 RR (RE)\u003cbr\u003e\n2020 Beta 300 RR (2t)\u003cbr\u003e\n2020 Beta 300 RR (RE)\u003cbr\u003e\n2020 Beta 300 Xtrainer\u003cbr\u003e\n2020 Beta 350 RR\u003cbr\u003e\n2020 Beta 350 RR (RE)\u003cbr\u003e\n2020 Beta 390 RR\u003cbr\u003e\n2020 Beta 390 RR (RE)\u003cbr\u003e\n2020 Beta 430 RR\u003cbr\u003e\n2020 Beta 430 RR (RE)\u003cbr\u003e\n2020 Beta 450 RR\u003cbr\u003e\n2020 Beta 480 RR (RE)\u003cbr\u003e\n2021 Beta 250 RR (2T)\u003cbr\u003e\n2021 Beta 250 RR (RE)\u003cbr\u003e\n2021 Beta 300 RR (2t)\u003cbr\u003e\n2021 Beta 300 RR (RE)\u003cbr\u003e\n2021 Beta 300 Xtrainer\u003cbr\u003e\n2021 Beta 350 RR\u003cbr\u003e\n2021 Beta 350 RR (RE)\u003cbr\u003e\n2021 Beta 390 RR\u003cbr\u003e\n2021 Beta 390 RR (RE)\u003cbr\u003e\n2021 Beta 430 RR\u003cbr\u003e\n2021 Beta 430 RR (RE)\u003cbr\u003e\n2021 Beta 450 RR\u003cbr\u003e\n2021 Beta 480 RR (RE)\u003cbr\u003e\n2022 Beta 250 RR (2T)\u003cbr\u003e\n2022 Beta 250 RR (RE)\u003cbr\u003e\n2022 Beta 300 RR (2t)\u003cbr\u003e\n2022 Beta 300 RR (RE)\u003cbr\u003e\n2022 Beta 300 Xtrainer\u003cbr\u003e\n2022 Beta 350 RR\u003cbr\u003e\n2022 Beta 350 RR (RE)\u003cbr\u003e\n2022 Beta 390 RR\u003cbr\u003e\n2022 Beta 390 RR (RE)\u003cbr\u003e\n2022 Beta 430 RR\u003cbr\u003e\n2022 Beta 430 RR (RE)\u003cbr\u003e\n2022 Beta 480 RR\u003cbr\u003e\n2022 Beta 480 RR (RE)\u003cbr\u003e\n2023 Beta 250 RR (2T)\u003cbr\u003e\n2023 Beta 250 RR (RE)\u003cbr\u003e\n2023 Beta 300 RR (2t)\u003cbr\u003e\n2023 Beta 300 RR (RE)\u003cbr\u003e\n2023 Beta 300 Xtrainer\u003cbr\u003e\n2023 Beta 350 RR\u003cbr\u003e\n2023 Beta 350 RR (RE)\u003cbr\u003e\n2023 Beta 390 RR\u003cbr\u003e\n2023 Beta 390 RR (RE)\u003cbr\u003e\n2023 Beta 430 RR\u003cbr\u003e\n2023 Beta 430 RR (RE)\u003cbr\u003e\n2023 Beta 480 RR\u003cbr\u003e\n2023 Beta 480 RR (RE)\u003cbr\u003e\n2024 Beta 250 RR (2T)\u003cbr\u003e\n2024 Beta 250 RR (RE)\u003cbr\u003e\n2024 Beta 300 RR (2t)\u003cbr\u003e\n2024 Beta 300 RR (RE)\u003cbr\u003e\n2024 Beta 300 Xtrainer\u003cbr\u003e\n2024 Beta 350 RR\u003cbr\u003e\n2024 Beta 350 RR (RE)\u003cbr\u003e\n2024 Beta 390 RR\u003cbr\u003e\n2024 Beta 390 RR (RE)\u003cbr\u003e\n2024 Beta 430 RR\u003cbr\u003e\n2024 Beta 430 RR (RE)\u003cbr\u003e\n2024 Beta 480 RR\u003cbr\u003e\n2024 Beta 480 RR (RE)\u003cbr\u003e\n2025 Beta 250 RR (2T)\u003cbr\u003e\n2025 Beta 250 RR (RE)\u003cbr\u003e\n2025 Beta 300 RR (2t)\u003cbr\u003e\n2025 Beta 300 RR (RE)\u003cbr\u003e\n2025 Beta 300 Xtrainer\u003cbr\u003e\n2025 Beta 350 RR\u003cbr\u003e\n2025 Beta 350 RR (RE)\u003cbr\u003e\n2025 Beta 390 RR\u003cbr\u003e\n2025 Beta 390 RR (RE)\u003cbr\u003e\n2025 Beta 430 RR\u003cbr\u003e\n2025 Beta 430 RR (RE)\u003cbr\u003e\n2025 Beta 480 RR\u003cbr\u003e\n2025 Beta 480 RR (RE)\u003cbr\u003e\n2026 Beta 250 RR (2T)\u003cbr\u003e\n2026 Beta 250 RR (RE)\u003cbr\u003e\n2026 Beta 300 RR (2t)\u003cbr\u003e\n2026 Beta 300 RR (RE)\u003cbr\u003e\n2026 Beta 300 Xtrainer\u003cbr\u003e\n2026 Beta 350 RR\u003cbr\u003e\n2026 Beta 350 RR (RE)\u003cbr\u003e\n2026 Beta 390 RR\u003cbr\u003e\n2026 Beta 390 RR (RE)\u003cbr\u003e\n2026 Beta 430 RR\u003cbr\u003e\n2026 Beta 430 RR (RE)\u003cbr\u003e\n2026 Beta 480 RR\u003cbr\u003e\n2026 Beta 480 RR (RE)","brand":"DIRT TRICKS","offers":[{"title":"Default Title","offer_id":67551511642347,"sku":"254-110149","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/13f8-5eece596776a9_867564e0-479a-491a-b727-93587fc97f2b.jpg?v=1790718368","url":"https:\/\/ctracingservices.com\/products\/dirt-tricks-49-tooth-zirconium-rear-sprocket-bt-49-z-c-for-beta-520-chain-models","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}