Amazon has that hub for $180, just the hub. I have a Micargi Tahiti NX3 and I love my internal 3 speed. I live in a really flat valley so having Low, Direct, and High gears works great. If my 3 speed dies I would consider swapping it out for the eight. Cruiser style bars might keep your knees from hitting them. Here's a pic of me, my girls, and my Cruiser. I peeled the tropical stickers off of it.