I ordered the Apex Ti and use it to lock my wheel to my frame for my fixie. The design is sleek and I appreciate the convenience of being able to lock it without the key. My only issue is that when I unlock it, I usually have to try a few times to get the key to release the lock. I've tried using a lock lubricant and other keys that came with it, but it still sticks. The carrying bag works well and is a handy way to avoid giving up my water bottle holder.