Cam 3.5mm stroke Standard (Black)
Cam 3.5mm stroke Smooth (Blue)
Cam 3mm stroke Medium (Green)
Cam 2.6mm stroke Short smooth (Red)
Cam 4mm stoke Std X2 (Steel)
Only for Stingray and Stingray X2.
Cam Steel 4mm stroke Std X2 only for Stingray X2 model.
Do not work for the old Stingray model as it requires the stronger motor.