urodacus wrote:Most touring tires tend to be, as you put it, 'effin heavy', as they're built like a tank to withstand punctures and to have a long, long tread life.
and yes, worrying about another few hundred grams in a build with a spare seat and a kid is a bit over the top.
Just ride, man.
Slicks front and back are fine. I have often taken my race bike many many miles through rough gravel roads in the hills here on 21 mm slicks and lived to tell the tale. My wheels survive too, though the tires do get scuffed up a bit (Vittoria Evo CX tubulars). With sport contacts front and back you'll be fine, or with a tire with slightly knobby edges on the front if you go anywhere that's sandy or muddy or rooty (not the place to ride with a kid)...
Well, I still don't know exactly what kind of conditions I'll be getting into. My main priorities are safety and less rolling resistance.
I did 50k on the bike trails this morning and felt like those knobbies were going to kill me riding back home against a headwind.
Maybe I should just get the Travel Contacts and have something that is pretty decent for everything. They will doubtless be lighter and roll better than the knobbies, at the very least.