Freewheel adapters for the Currie gear reduction motors are now available!
13, 14 an 15T freewheel compatible!
11mm ID w/4mm keyway ...
Less than $17 ! - New Link
Also,
Now available,
Adapters for 16T and larger freewheels! ...
Less than $17 !
Staton-inc
Ordering up both and will report ... likely ... within a week!