Forgive me for i have sinned,........ i have fitted a pannier carrier to my trek i use for my (usually)daily ride to work, as soon as i fitted it & rode to &from work i felt that i had turned into an old man!! when i finally got home i got off my bike & felt a twinge in my back, as i walked past the mirror in my hallway i noticed my hair had turned grey!! Help please!! i really feel like buying some bicycle clips tomorrow is this normal behaviour? 
