To convert your old (Black) Vortex clutch to the new (Red) Vortex clutch you will need a drum, sprocket and attachment hardware. Your old four-tab discs will fit in the new 12-slot drums. When you’re due for a rebuild, order the 12-tab kit.
Sprockets from 9T through 21T are in stock. #219 sprockets are available too. All "Red" sprockets including the tiny 9T are equipped with a ball bearing.
The website will be updated soon with a “Conversion” page. Meanwhile, please email or call.