Sure, but folks were suggesting that bikes might not use a belt if it weren't for the Gates prize. Zerode, as an example, was using them 4 years before Gates offered up the prize, so clearly, not the driver for them. As mentioned a few times before, I think GBs and belt drives are an interesting solution for gravity sports. Unclear, in my mind at least, if they are definitively better than conventional drive systems, even in that area. It's pretty tough to decipher all of the politics and contractual obligations that might prevent some of the winningest DH teams...