Marketing Color: Carbon Material: Steel Sprocket Position: Rear Sprocket Size: 520 Sprocket Teeth: 53 JT Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability. JT rear sprockets are made from the finest C45 high carbon steel. All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards. Induction hardened with black zinc finish available on certain sprockets. This item fits H-D the following vehicle applications: fits Beta™ 250 RR 2013-2021 fits Beta™ 250 RR Race Edition 2017-2021 fits Beta™ 250 RR-Race Edition (2-Stroke) 2014 fits Beta™ 300 RR 2013-2021 fits Beta™ 300 RR Race Edition 2017-2021 fits Beta™ 300 RR-Race Edition (2-Stroke) 2014 fits Beta™ 350 RR 2013-2014 fits Beta™ 350 RR EFI 2015-2016 fits Beta™ 350 RR Race Edition 2017-2021 fits Beta™ 350 RR-S 2018-2021 fits Beta™ 390 RR 2015-2016 fits Beta™ 390 RR Race Edition 2017-2021 fits Beta™ 390 RR-S 2017-2021 fits Beta™ 400 RR 2013-2014 fits Beta™ 430 RR 2015-2016 fits Beta™ 430 RR Race Edition 2017-2021 fits Beta™ 430 RR-S 2018-2021 fits Beta™ 430 RS 2015-2016 fits Beta™ 450 RR 2013-2014 fits Beta™ 450 RR-Race Edition 2014 fits Beta™ 480 RR 2015-2016 fits Beta™ 480 RR Race Edition 2017-2021 fits Beta™ 498 RR 2013-2014 fits Beta™ 498 RR-Race Edition 2014 fits HON CR125R 1983-2007 fits HON CR250R 1984-2007 fits HON CR500R 1984-2001 fits HON CRF150F 2012-2017 fits HON CRF150F 2003-2009 fits HON CRF230F 2019 fits HON CRF230F 2012-2017 fits HON CRF230F 2003-2009 fits HON CRF230L 2008-2009 fits HON CRF230M 2009 fits HON CRF250F 2019-2021 fits HON CRF250R 2004-2021 fits HON CRF250RX 2019-2021 fits HON CRF250X 2015-2017 fits HON CRF250X 2012-2013 fits HON CRF250X 2004-2009 fits HON CRF450L 2019-2020 fits HON CRF450R 2002-2021 fits HON CRF450RL 2021 fits HON CRF450RWE 2019-2021 fits HON CRF450RX 2017-2021 fits HON CRF450X 2019-2021 fits HON CRF450X 2012-2017 fits HON CRF450X 2005-2009 fits HON XR250R 1996-2004 fits HON XR400R 1996-2004 fits HON XR650R 2000-2007