21 external teeth, 5.000" inside diameter, .100" thick, 3 required.

12 external teeth, 4.575" inside diameter, .092" thick, 5 required.

Alto Red Eagle clutches
Stock thickness 42 internal teeth, 5.901" outside diameter, .080" thick, 10 required.

Stock thickness.
47 internal teeth, 6.561" outside diameter, .090" thick, 3 required.

12 external teeth, 4.575" inside diameter, .077" thick, 5 required

12 external teeth, 4.575" inside diameter, .061" thick, as required.

Thinner than stock.
42 internal teeth, 5.901" outside diameter, .061" thick, as required

Thinner than stock.
21 external teeth, 5.000" inside diameter, .063" thick, as required.