Carrera Structo Jeep Renegade Tyre

This R/C car is about 34 years old, the tyres on mine (which I've had that long!) are cracking and falling to bits. This is a replacement tyre for the model. This one is printed in Polyflex which is possibly a bit on the solid side for tyres. We've not dialled in the Ultimaker 2+ on Ninjaflex yet which would probably be a better as it's softer on the durometer scale.

You need to use a screw driver to help get these on the rims, they are harder than the stock tyres. If you have the time/patie