This is an optional Align M2.5 Belt Pulley Assembly Upgrade Set, which includes the necessary parts to convert the original Main Shaft, & Autorotation Hub Assembly from the smaller M2 sized screw, to the more durable M2.5 sized screw.
- (1) M2.5 470L Main Shaft
- (3) M2.5x12mm Socket Head Collar Screw
- (1) M2.5 Nut
- (1) 6.1x9x0.2mm Main Shaft Spacer
- (1) Main Shaft Lock Ring
- (1) Main Drive Gear Mount
- (1) One Way Bearing Shaft