I am planning a 7 day 400 mile tour this summer 50-70 mile days, and I was planning on most of my base-miles to be in the form of bike commuting to work, which is only 10 miles a day. I was going to supplement these with long weekend rides on my road-bike and 2 extend-the-route-home (from the current 5 with options of 10-15 & 20 miles) bike commuting miles. I was all set with this plan, until this weekend.
We had a nice spring day so I did a 40 mile ride on my road-bike (vs my touring bike) and the body position was different enough that I felt different muscles engaging, and my kiester felt a bit sore due to different position on the saddle. When I add up the miles, I do many more rides on the touring bike, but for time on the bike, it will be about 50/50 road-bike to touring bike.
So the simple question is, do I need to do more of my training on the touring bike, or will I be fine by the time I build up to the tour (Early July)? Since that really is a personal type question, I guess more specifically, do YOU prepare for your tours primarily on your touring rig or do you swap steeds?
BTW, the intention of the tour is around a fitness bootcamp where I also get to camp and see roads I don't normally see, so I am intending it to be somewhat demanding. I typically average 16 mph unladen on the road bike over that distance so I'm assuming 12 mph or so loaded, which will translate to 6 hrs on the road, and probably 8 - 10 hours from stop to stop each day.