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BETA 250 350 400 450 498 520 RR 2005-2012 FACTORY REAR SPROCKET 51T

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Calculated at Checkout
BETA 250 350 400 450 498 520 RR 2005-2012 FACTORY REAR SPROCKET 51T

AS3 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.





Will Fit

2005-2012 Beta 250 RR

2011-2012 Beta 350 RR

2005-2012 Beta 400 RR

2011-2012 Beta 450 RR

2012 Beta 498 RR

2010-2014 Beta 520 RR



  • Hardened steel outer ring will outlast aluminium sprockets by up to 3 times
  • Aircraft grade 7075-T6 aluminium inner ring, up to 50% lighter than steel sprockets
  • Will not bend or damage as easily as aluminium sprockets, ideal for enduro 
  • Anodised finish with AS3 Performance branding
  • Manufactured by one of the world's leading sprocket manufacturers
  • Tested on some of the toughest sand tracks in the world
  • UK company with 12 month warranty
  • The sprocket in the picture is the exact style of sprocket you will receive