[mechanicalbrain]

The most important thing with CVTs (Ive been researching them allot). One weight is a big issue and you need to carefully choose material. Two durability is going to be a problem. Constant grinding causes the CVT to wear down which is part of the reason they aren't in cars (the other is reason one and the last reason). The third thing to keep in mind is friction. It doesn't matter if you can get a great torque ratio if every time you try to push against something the gears are slipping! What you need is a durable, lightweight material, that has great friction which brings us to the last thing to consider, cost. If you want a nice drive train its going to cost you! I don't doubt that some of you might differ in opinion but this is just my opinion based on my research. I however very much recommend pursuing this venture and figure out the best way to use them. These are very worth while to make and if you want i have some links of good materials and sites that will help you develop one. I'm very interested in teams that build them and i would love to here an ideas you have.