Lifeproof case and bike mount is the best answer IMHO. I've had the case on the 4 and 5 and is by the far the most ruggest case out there. Also unlike everyother case it is water proof. I have taken mine for a swim more than once! So the case will withstand weather. The bike mount is like all their case accesories it has a locking latch to make it secure. On top of all this the case isn't bulky like so many (Otterbox).