2024 Kawasaki Zx6r Top Speed. ** the curb weight includes all materials and fluids required to operate properly, a full tank of fuel (over 90 percent capacity), and tool kit (if provided). Not surprised the 2024 is down a bit but seems like a good tune should be able to get it back unless they lowered the compression or changed the cams.
While effective vehicle speed and engine speed may vary by model, paying attention to conditions that cause the eco mark to appear can help riders improve their fuel. If speed is what you want go to a zx10r or similar.