Hello you bike fanatics. My first post here. I just got myself a Trek 3500 today as my first bike in 11 years. When I was 8, I had a really cheap bike, so I never knew anything about bikes until I recently did some research. I was interested in a hybrid/road bike, but for my commuting, I drive across a bridge and live too far away anyways. I just needed to get myself a good bike for a busy college campus with tons of different terrain, paths, and trails. I went to my local bike shop and test rode a few bikes and instantly fell in love with the 3500. It was a perfect price for my budget, $464 that's with tax. Technically, this is my first bike ever paid for and over $100, so I don't know the experience of a high end bike. Ultra comfy compared to some of the other Treks and road bikes my LBS offered, especially with the front suspension.

Here's a picture of my new prized possession


However, here's where I need help: I never maintained, or even knew parts of a bike when I was a kid. I now know a general knowledge of my bike, but I'm looking for ways to keep my bike safe on campus. I know I could have bought an ugly cheap beater bike, but I wanted something that I felt proud of riding and that I could do for recreation as well. So can anyone give me some anti-theft ideas? I took off the quick release for the seat, and just tightened some bolts on it so no one can just yank it off. I'm going to get a U-Lock FOR SURE! Maybe even a cable to go with it. What are some good brands and models that I can look into? Are there any other accessories I should look into? And also, how much of a difference would less-traction tires make up for speed? It already goes pretty quick for a mountain bike, but a little more wouldn't hurt. If anyone can answer any of these questions for me, I'd greatly appreciate it. Thanks guys!