I had the opportunity to buy a Comet TAV2 Torq-A-Verter CVT a year ago when I first started dreaming about Cycle Karts, but I didn’t and now they are impossible to find.  I have frantically searching for the TAV2 unit or some alternative.

Steve suggested Max-Torque. They have 3/4″ diameter units in stock, however I need a 1″ diameter for my application since I’m using a 8 HP Tecumseh engine. Some places anticipate stocking knock-off TAV2 units in the coming months, but I doubt the quality or the likelihood of delivery.  I looked at some other options, like CVT units from 250cc scooters, but once more faced the 1″ diameter issue.

I found CVTech-IBC, in Canada, and it looks like they are the best bet.  They offer many diameters, including the 1″.  They also have twice the gear ration range of the TAV2, but they cost twice as much as well.

Has anyone had much success with only a centrifugal clutch?  The official CycleKarts.com specs use a torque converter, so I’m hesitant to try it without one.