Bike Attachment for iPhone 5, 4 and 4S

I added the model for the iPhone 5 now. So you only need to change the top part, and it works the same. So, you upgrade your phone, just print the top part, and you're good to go.

This is a bike attachment you can use with your bike to hold your iPhone 4 and 4S. I derived it from my iPhone 4 case.