I'm in the slow process of building up a 1974 Woodrup Star Trophy model and I have a Maillard Helicomatic rear hub (6 speed) largest cog 21t. Does anybody know of a source for Helicomatic freewheels, since I want to change this one out for a 24 or 26t max freewheel. I'm currently slumming evilbay since I see that parts occassionally show up there. My other option is to use what I have until the hub is trashed. Thanks.