I'm guessing "senior" as in a gender-neutral version of granny. I don't have grandkids yet and haven't checked for ear-hairs, but I definitely need low-end gears for getting up hills. As for where I'd be riding ... Either the bike stays in California for me to ride when visiting family there, or it goes back with me to Norway. Both places, you can't get far without encountering hills that I find challenging, to say the least, even down to my daily commute which is a 3-mile uphill slog (though not steep). So I guess it's either the 7.5 or get a triple on the 7.6.

I test rode the 7.6 on the "beautiful bike path by the lake" (the LBS's radio ad). It is gorgeous, and it was fun going fast, but that side of town is flat as a lefse. If I do move forward with this, maybe I'll take both bikes out for a longer spin and find some hills, like out my way west of town. If I can get up those with the double, then maybe switching to a triple would get me up bigger ones. Probl'y not Diablo or Mt. Tam or over Dovrefjell back in Norway, but they're out of my league anyway. The guy I talked to today thought it over and said he thought he could put a triple on the 7.6 without it costing me more than a few bucks extra and without having to change the back cogs and derailleur. It's tempting, not least 'cuz ... yes, I do like red!