Just an update. I bought a n360 hub and had it installed over the weekend. I am now feeling it was a mistake. I would be shocked if the hub efficiency is even 70%. I use to have a shimano nexus 3-speed hub and could climb about any hill in Omaha without resting. Now I need to rest after even the slightest incline. I am very disappointed in the hub. I'll try and play around with the hub this weekend and see if trek adjusted the hub correctly as they have never seen one. If it's just an adjustment problem I'll amend my recommendation but for now I have to put the n360 at a don't buy. I am left wishing I had bought a nexus 8 as it would have been cheaper and I KNOW it would have worked.