Super Tread

Updated tread for Segway Navimow Traction Wheels i Series available at https://www.thingiverse.com/thing:6722724. This allows you to use standard roofing nails as a spike tread. I printed this in PETG and it works well. you need to heat the nails and melt them in that way they have no play. This fits 1.25" standard nails pretty well without any interference with the mower. I would install only a single set of these in the second row of treads. Since roofing nails are aluminum you can simply cut them down with a set of standard dykes to the size that you need if you don't have 1.25" nails handy. You will need to print the hub and additional tread pieces from the original file.