Chaintool is a must! I also carry several spare master links for 8, 9 and 10 speed chains. I primarily mountain bike. The stuff doesn't weigh much and getting to use them saves somebodies day. Remember the Boy Scout Motto: BE PREPARED!
__________________
I think its disgusting and terrible how people treat Lance Armstrong, especially after winning 7 Tour de France Titles while on drugs!
I can't even find my bike when I'm on drugs. -Willie N.