My MIL got me a BioLogic case/mount for my 5S and though I have no qualms exposing the phone to danger, I really did find the case too annoying to use. I don't want to be attached to the bike via headphones, and it covered up the volume and vibrate controls. I'd rather have the phone in my pocket. If I wanted a speedometer I'd get a dedicated bike computer. I also don't want to spend this kind of money for something that's going to need to be replaced in two years along with the phone. I do appreciate the bike gifts she's been getting me but they always seem to miss the mark a little.