Join Date: Oct 2009
Location: Further North than U
Bikes: Spec Roubaix, three Fisher Montare, two Pugs
I'll bet there is some way a person could categorize roadside puncture danger. Whatever that scale may be, if you ride on a lot of trash you'll probably want to consider a more puncture proof tire. Personally I think it's silly for riders to put up with punctures with any regularity at all. If I were you and got another puncture in the next month due to debris...I'd be putting on Gatorskins, my favorite tires for bad-but-not-too-bad conditions. There's a huge body of "best puncture proof bike tire" web pages out there. The more incredibly puncture proof you get the deader the tire feels, all other things being equal, so the trick for any kind of non-competitive riding is to ride with the liveliest tire you can use while getting whatever protection you can live with to balance protection vs performance.
I keep a spare tube with me all the time because if you work efficiently you can take a wheel off, pull out a tube, put a new one in and be on your way in 10-15min or less. Patching a tire really adds a lot of time but a quick check of the tire for thorns/sharp stuff and a replacement tube doesn't take much time at all. Especially if you have C02.
I'll admit I'd be a little perturbed if somebody in a no-drop group flatted and djdn't have a spare tube. Either people wait extra long for him/her to fix the flat by patching it or...give him/her a tube...it's just a faster thing if you have a spare tube so I personally think it's good etiquette to bring along a spare tube on any group ride. And training is done just as effectively with a little extra weight. Leave them behind for a race perhaps. My son-in-law stopped to help a guy while he was doing a leg of a 4 person team race. His team still won. I thought that stopping in the middle of a race to help was a bit much