BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 49T BLACK BF25-none 2021-2025 KTM 350 SX-F

2021-2025 KTM 350 SX-F

2016-2019 Yamaha XSR 900

2017-2021 Husqvarna FX 350

2017-2021 KTM 1290 Adventure S

2021-2023 KTM 890 Adventure

BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 49T BLACK BF25-none 2021-2025 KTM 350 SX-FAS3 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: 49 Chain: 520 Will Fit