Bike Smart Phone Holder

thingiverse

This Thing is a smart phone cradle that mounts on the handlebar stem of a bicycle. It is made up of three pieces: * The "holder," which holds the phone (and optionally an [Anker PowerCore](https://www.amazon.com/gp/product/B005NF5NTK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) charger for long rides) * The "grip," which grips the handlebar stem * The "stalk," which holds the other two pieces together Everything is held together with #4-40 machine screws, and bikes being bikes, I suggest nylon insert lock nuts so things don't loosen up. I used these: * [1/2" screws](https://www.boltdepot.com/Product-Details.aspx?product=4835) * [3/4" screws](https://www.boltdepot.com/Product-Details.aspx?product=4837) * [Nuts](https://www.boltdepot.com/Product-Details.aspx?product=4107) The bolt pattern between the stalk and the grip, and again between the stalk and the holder, is a 15 mm x 30 mm rectangle measured between bolt centers. The idea behind this was to allow me to print a new holder (if I get a new phone) or grip (if I get a new bike). The holder published here is for an iPhone 12 mini in an Otterbox Symmetry case, and the grip is for a Nishiki Pueblo bike. You'll need two stalks and two grips; the photos show how they go together.