Yamaha WR400F/ YZ400F/ WR426F/ YZ426F/ WR450F/ YZ450F/ YZ450FX


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Rocket Aluminum Colored Rear Sprockets
Lightweight alloy rear racing sprockets for motocross and dirt bikes from Magnum.
All sprockets are constructed of lightweight 7075 aircraft grade aluminum that has
been heat treated to T6 standard to be nearly indestructible. Computer designed
lightening hole patterns help save weight without sacrificing strength, plus all
sprockets are grooved for muddy conditions.

Additional information


WR400F, YZ400F, WR426F, YZ426F, WR450F, YZ450F, YZ450FX



Sprocket Size

48, 49, 50, 51


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Make Model Year
Yamaha WR400 1999
Yamaha WR426F 2002
Yamaha WR450F 2003 - 2023
Yamaha YZ400F 1999
Yamaha YZ426F 2002
Yamaha YZ450F 2003 - 2023
Yamaha YZ450FX 2016 - 2023
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