Renthal Alloy rear wheel sprocket.

150U 520 part number.

Sprocket size as per advert title.

Fits Yamaha YZ125 1999-2020

YZ250 1999-2020

YZF250 2001-2020

YZF426 2000-2002

YZF450 2003-2020

WRF250 2001-2020

WRF426 2001-2002

WRF450 2003-2020

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