Kawasaki Ninja EX400/Ninja 500 EBC Floating Front Rotor 2018/Current

Description

EBC Kawasaki Ex400/Ninja 500 Floating Front Rotor : The steel used in the EBC rotor blades is a special stainless blend with higher friction effect than normal heat treated stainless steel found on stock discs. This will boasts up to 10% improvement in friction effect improving brakes even further. Weight of the  XC series is reduced by 5-10% by using a six only button drive system on a lightweight alloy center hub, which once again grabs the lead over stock parts.

Two Piece Rotor

90% of rotors branded as floating types are actually simply a two piece rotor where the outer rotor ring is riveted to a central hub by circular mass produced rivets. A rotor made with circular rivets does not float at all because the tolerances (differences in PCD – pitch circle diameter of the inner and outer components) would need to be so large that the rotor would rattle and shake from day one. At this point it is essential to differentiate between axial floating and radial floating. Any motorcycle rotor built with axial float often described by people as a self centering rotor is also doomed to failure. The pad and piston knock back effect of a rotor with axial float is simply a killer and causes sponginess and can render brake levers coming right back to the motorcycle handlebar when trying to re-connect the “knocked back” pad with the rotor under braking. Not good at all!

So zero axial float is needed or desirable in any type of rotor.

Under braking and heat generation the outer ring or rotor blade of every two piece motorcycle rotor suffers from band width growth, in other words the outside of the rotor grows outwards but the inside of the rotor blade expands and clearance SHRINKS the inwards. It is this shrinking inwards that defeats the myth that two piece rotors actually float.