BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 50T RED type-trials Provides excellent protection to the

Provides excellent protection to the internal power valve parts

2012-2015 Yamaha WR 450 F

2012-2023 KTM 300 EXC

Anodised green finish with AS3 Performance branding

2015-2018 TM MX 450 FI

BETA 250 350 400 450 498 520 RR 2005-2012 AS3 FACTORY REAR SPROCKET 520 50T RED type-trials Provides excellent protection to theAS3 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: 50 Chain: 520 Will Fit