The wheels on my tandem trailer are exactly 1 inch apart. This means I was able to use the new X-style cartridges. However, after receiving this amazing device, I'm glad I couldn't get X-style cartridges. While they are a great product and I won't dwell on them, the ease of the cartridge installation between the wheel and footboard is much better in my opinion. If my calculations are correct, there are 27 different hole locations that correspond exactly to the width of your pendant so you can…