Registered Forum User
Ducati Corse
Posts: 3,134
Join Date: Jan 2002
Location: notts
Mood: Bloo and Yellow.. and Red now ;)
The 4 post slippers are required so that lock up pegs can be fitted to stop the slipper slipping when the bike is started using a starting machine......
With the wheel spinning, if the clutch is dropped to turn the engine over, the slipper will do what it's meant to and disengage the drive.