Supertech Kawasaki Ninja ZX12 28.30mm x 4.95mm x 98.4mm Black Nitrided Exhaust Valve - Single

This is a Supertech exhaust valve designed for the Kawasaki Ninja ZX12. It measures 28.30mm in diameter and 4.95mm in stem thickness, with an overall length of 98.4mm. The valve features a black nitrided surface treatment, which helps to improve its hardness and resistance to wear, especially under the high temperatures and stresses found in an exhaust port.

The black nitriding process creates a tough outer layer on the valve, making it more durable and less prone to pitting or corrosion. This can contribute to a more reliable seal and consistent performance over time. Supertech valves are well-built components intended to meet the demands of engine operation.