ZX750 (Ninja) ZX7 91-95. ZX750 (Ninja) ZX7R 91-03. ZX750 (Ninja) ZX7RR 96-9. Rear Wheel Bearings Kit 3x Koyo Bearings (includes sprocket bearing). The answer is easy, Pyramid Parts Oil seals are all Low Stiction (low friction) seals designed specifically for motorcycles.
