I think you have a lot of courage, taking on a 66km round trip. My round trip is 50km which, depending on weather and other variables, can feel pretty long.

Once in a while I take my 7spd IGH 'comfort bike' to work. It's sort of the backup for my 27spd road bike. Even though it's slower and takes me 10min extra to get home or to work, it can be quite nice to ride. I prefer the road bike though, and I'm glad I have her fixed up now. It's been 3 weeks since I've ridden her, and it will be a blast