Last time I was mounting a tire I simply did not have the strength to squeeze and lever the tire into place because of arthritic pain. This geezer status I have can be quite embarrassing. I 3D printed a modified device to assist with that last part of tie mounting that I used to be able to do.

I know there are many new tires that are very difficulty to mount and this tool is not made for them. I needed a tool to just assist with mounting tires I normally could have just squeezed into place. After allot of searching I found the "TireKey" tool to have the best possibilities. For my 3D print I changed the angel and width of closure and also the rim contact seat area to accommodate the tires I usually use. That is 700c 28-34 or 27 1-1/4.

I center my initial tire beads in the rim and work the bead around the tire normally till I get to that final 10-15 CM of closure. I then hold the tire with one hand and use the tool to lift and pull the bead into place. This device is printed out of PLA which is a weak plastic. For more strength it most likely needs to be printed out of ABS or Nylon. I am fine with it as is. If I did not have this dam arthritis I would not need it at all...


https://www.thingiverse.com/thing:5487663

The brand name TyreKey of course would offer the best construction for more difficult tires. It is made of nylon and is more compact with angels appropriate for thinner tires and beads. https://www.tyrekey.com/