Just chiming in...and in agreement with most everyone. I'm the newbie to cycling, my bf has succeeded in getting me interested in it. Anyway, he logs on about 230-300+ miles a week and I can very confidently say that all the plumbing works perfectly well. The only problems have been when he wasn't dressed warm enough for a ride and came home with a frozen package (so to speak). He was still hurting in that department a couple of hours later (but this is MN cold I'm talking about)...poor guy.