I'm new to biking, I just bought a Fuji Team Carbon Bike 105/Ultegra. I'm not sure if this bike would be would be a target for most thieves but I hear carbon bikes usually are. I was doing some research on bike security and it looks like most people like the Kryptonite New York Fahgettaboudit u-lock. I was going to team this up with a cable around the front tire and maybe a tiny cable just for the post & saddle but I'm wondering if this is enough? I'm assume there is going to be times where I would leave the bike unattended for about 3 hours in a very low traffic area with a lot of fan noise. Would you guys recommend the Fahgettaboudit chain lock over the U-lock? I thought about carrying both but it kind of defeats the purpose of buying such a light bike and having to carry around all this crap. What is your take?