This part lets you mount the Kepler e-bike light from Pacific Design Works to the mounting boss on a Surly Rear Rack.
The light does come with a universal mounting clamp for various tube diameters, but because of the placement of that boss on the rack, the clamp can't be installed exactly centered and it looks off.
This part will position the light exactly in the center of the rack.
You'll additionally need these parts:
Recommended print orientation (with supports) shown in the screenshot.
Modeled in Fusion 360. You can view and download the model.
The author marked this model as their own original creation.