Looking at a 2013 trek mamba at LBS they have 3 of them but 1 doesn't have the Hayes Dyno Sport brake set up on it. Salesman says they're Tektro ,but every Mamba i can find has Hayes on it. Anybody ever seen one set up this way. They are still trying to get retail for this bike and telling me its a better bike than a x cal 8, which they don't have anyone with any thoughts on this situation. thanks