BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 51T BLACK year-1995 1998-2018 Yamaha YZF 1000 R1

1998-2018 Yamaha YZF 1000 R1

2015-2019 Yamaha YZF 1000 R1

2012-2013 KTM 350 XCF-W

2006-2012 KTM 105 SX

SWM RS 500 R 2016-2020

BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 51T BLACK year-1995 1998-2018 Yamaha YZF 1000 R1AS3 Performance Factory Series rear sprockets combine the strength of steel and the light weight of aluminium to give you the ultimate hard wearing rear sprocket. The outer ring is manufactured from hardened steel with a nickel coating and will outlast an aluminium sprocket by up to 3 times. The inner ring is constructed from aircraft grade 7075 T6 aluminium and is up to 50% lighter than a standard steel sprocket. Details Teeth: 51 Chain: 520 Will Fit