Kawi press release.
https://www.kawasaki.com/Press/Release/2016-Ninja-300-ABS
"2016 KAWASAKI NINJA® 1000 ABS
Riders seeking the ultimate performance coupled with everyday practicality will be
thrilled to throw a leg over the Ninja 1000 ABS sportbike, especially with a new assist
and slipper clutch. It is well equipped with the most advanced tools to help the rider
tackle a variety of situations. Starting with the powerful 1,043cc DFI® engine, its usability
is enhanced with selectable Power Modes and three-mode KTRC Traction Control
system to help moderate the power in slippery conditions, as well as anti-lock brakes.
The new assist and slipper clutch was developed from Kawasaki’s experience on the
racetrack. The clutch uses two types of cams (an assist cam and a slipper cam),
allowing it to provide two new functions, not available on the standard clutch of the
previous model.
When the engine is under load, the assist cam functions to pull the clutch hub and
operating plate together to compress the clutch plates. This allows the total clutch
spring load to be reduced, resulting in a lighter clutch lever pull. Fewer clutch springs
(three replacing five springs on the previous model) translate to a 30% lighter clutch
lever feel.
When backload is applied (i.e. excessive engine braking occurs), perhaps as the
result of quick downshifts (or even an accidental downshift), the slipper cam then comes "