I always carry a tripod and never had an issue. Mine folds down to 20" at about 3.5lbs weight. Seeing that yours folds down to 24"-30" - I find that a bit long honestly. Mine at 20" was pretty large to take around all day and I do have a special tripod holder at my backpack so it's out of the way for people but the tripod was still rather long.
Next thing to consider - what are you going to do with it when you go on rides? My 20" was pretty borderline on most rides. If you intend to store it in a locker or can leave it with someone outside, no problem, but if you intend to take it on rides, you may run into problems.