SAB Heli Devision: This is the new improved main shaft with M4 locking collar. The big M4 screw will help lamping the main shaft better to eliminate any vertical play. Available soon at dealers near you.
1 x H0122 main Shaft
1 x H0121 M4 Locking Collar
1 x HC110 M4x25 socket cap screw
2 x HC104 M4nx22 socket cap screws
3 x HC212 M4 Nylon Lock Nuts
Reported by: SAB Heli Division