I've ridden / raced indoor several times. It's a lot different than outdoors for sure, it's very tight and you have a lot of other riders in your space to worry about as oppossed to outdoors. Without knowing your abilities I can't recommend anything except if you're new to any kind of riding look where you want to go and HOLD YOUR LINE! The faster guys will get around you without you having to watch behind you. Don't showboat, just ride to your ability and live to ride another day. Good luck.