I recently bought a Kryptonite Fahgettaboudit U-Lock and was very disappointed that Kryptonite decided not to include a mount for it. I couldn't find a mount that did exactly what I wanted, so I made my own. It uses one of the water bottle cage mount points and the original M5 socket head cap screws. The photos are pretty self explanatory The spacing between the holes on my bike is about 2.5".
This design assumes the cage mounting bosses on your bike are 9mm diameter, and extend 2.5mm from the tube. Tube is 30mm diameter.
I recommend printing in nylon for strength, but ABS should be okay too.
Kryptonite_NYF_Mount.STEP | 734.1KB | |
Kryptonite_NYF_Mount_Flat_Bottom.STEP | 733.3KB | |
Kryptonite_NYF_Mount_Flat_Bottom.STL | 819.5KB | |
Kryptonite_NYF_Mount_V2.STL | 770.1KB |