How does suspension make traveling on roads worse? I mean, what are the actual mechanics? How much does a suspension system actually weigh? Why is it that losing or gaining 5 pounds from your hips doesn't make a difference but the weight of the suspension fork does? Why does the bit of bobbing up and down matter so much, but the bike rocking a bit back and forth with every pedal stroke isn't even worthy of mention when it comes to a loss of energy? It seems people really rag on them, but don't compare them to other variables that don't rate a mention when loss of energy is discussed.