[sdcantrell56]

There was one team that tried v belts I believe in 2007 and the belts failed miserably. A couple teams have used timing belts successfully such as team 125 and team 118 uses them to some extent. You just have to design for them instead of using them the exact same as chain. For instance, you need to have a lot of wrap around the pulleys and the belt must be tensioned properly, although once tensioned the belt stretches much less than chain.