The TPA will be fine, RB has been using that design for years. If it snaps, you just replace it with a screw. Much better than having to go through the bother of ordering a TPA. Same with the remaining parts, RB used a modular brake lever where you could pretty much replace every single bit. Hope Deng introduces spares like he has with the SL hubs. The new Echo frames are targeted at the same group of riders as Koxx frames. They are mighty expensive but if you think about it, all comp stuff is. I don't think anybody knows what these will look like but if they turn out to be made around the same concept as the Boxx, they will find lots of buyers.