The Ultralight Rear Sprocket - Honda CR/CRF 125/250/450 Up To 2024 - 49T Black is part of the latest performance motocross and enduro hardware range from Renthal. . Renthal is a renowned manufacturer of high-performance motorcycle, motocross, enduro, trials and ATV components. Founded in 1969, Renthal has established itself as a leader in the industry, producing handlebars, grips, sprockets, and more. Their products are favoured by professional riders worldwide for their durability, precision engineering, and innovative design. . To fit: . Honda CR 125 1983-2007 . Honda CR 250 1984-2007 . Honda CR 500 1993-2001 . Honda CRF250R 2004-2024 . Honda CRF450R 2002-2024 . Honda CRF250X 2004-2019 . Honda CRF450X 2005-2024 . Honda CRF250RX 2019-2024 . Honda CRF450RX 2017-2024 . Honda XR 250 1998-2011 . Honda XR 400 1996-2011 . Honda XR 650 1993-2021 . Manufacturer part number: 154U-520-49GRBK .