[MetalMan]

This adapter will allow you to fit a motor without a 25mm screw pattern (25mm = distance between mounting holes on a 540 motor) to a mount that has a 25mm screw pattern. The KB45 motor has a 30mm screw pattern and uses 4mm screws, so an adapater for the KB45 would allow it to mount up to, let's say an E-Maxx motor mount that uses a 25mm screw pattern and 3mm screws.

squee, the KB45 motors have screwed-on endbells. I talked to a guy who said his unscrewed very easily (so he took measures to keep it tight), but my KB45 10XL will not let its front endbell come loose. I've tried a grip wrench (rubber strap wrench) and a plate held in the vice attached to the front endbell by 4 screws, and I would've broken the grip wrench if I were to have used any more strength.