Yamaha WR426 F 2001-2004. Yamaha WR400 F 1999-2000. Yamaha WR450 F 2003-2004. Yamaha WR250 F 2001-2004. 2x Inner fork Bushes. 2x Outer fork Bushes. The answer is easy, Pyramid Parts Oil seals are all Low Stiction (low friction) seals designed specifically for motorcycles.
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