Bottle cage mount so that you can mount 2 cages in one location
This can be used with or without the heated inserts as a regular M5 bolt does “cut” it's own threads. However the long term durability of the threads may not hold up to the test of time.
Additionally, this may not work on every bike. It is installed on my small framed fat bike, and it clears the crank arms. There would likely be interference with frames with narrower bottom brackets or where the cage mounts are within the arc of the crank arms.
f3d file included if case you'd like to edit to better fit your bike.
The author marked this model as their own original creation.