Phone Holder for Bike/Bicycle (Handlebar Mount) by 0lympy on Thingiverse: https://www.thingiverse.com/thing:4358620

Summary:
What's thisIt's an adaptive phone holder for 68..100mm width smartphones. I've designed it to mount my smartphone on the bicycle handlebar tightly and securely.Warning! Do not over-tighten your smartphone inside!Sample handlebar 31mm adapter is included (2BoltsHandlebarHolder_v5.stl), but you can use your own adapters with this holder. Mount standard is 2x M4 countersink screws, distance is 25mm between their axes.You'll need additional spare parts in order to assemble that. See assembly instructions below.Fusion360 sources included.Assembly instructionsIt is recommended to glue up rubber stripes at the inner sides of this holder in order to improve grip (see real photos). Old bicycle tire inner tube works well for that.Insert M5 nut into the moving part of BicyclePhoneHolder_v4.stl and fix it by applying BicyclePhoneHolderv4-_nutcap.stl.Insert M5 bolt into BicyclePhoneHolderv7-_knob.stl and twist it into the nut through both static and moving part of BicyclePhoneHolder_v4.stl.[optional] Insert M4 nuts into 2BoltsHandlebarHolder_v5.stl and attach it to the holder and handlebar with corresponding M4 screws.Spare parts required:For the holder itself:1x M5 nut1x M5x35 or M5x50 (longer for the wider smartphone) boltFor the sample handlebar mount:4x M4 nut2x M4x12 countersink screws2x M4x20 screws with inner hexagon head