i recently purchased a used 4*120 with inflatable tires,my question is what do i need to use to inflate these as far as a needle goes? will a standard basketball needle do the trick?
thanks

Trying to get those tires inflated and then put the stem back in before they deflate and loose all the air you just pumped in will be an exercise in futility that you don't want to get into.

Plug them up and let them just have whatever air is in them now--or replace them.

WHY BOTHER WITH IT JUST RPLACE EM

The two sets of inflatables I have both came with their own adapter to fill. No air escapes the valve when removed. You need the adapter from Dubro (assuming that is your brand).

hi, does anyone know how to fix the air valves on dubro inflatable scale tires, i have several that won't hold air because the valve leaks. i use the filler device that dubro sells but any air that goes in comes right back out. any fixes out there , would appreciate hearing of them. thanks phil b.

Dubro sells the replacement core valves for the tires. Just replaced a couple for a friend of mine on his Tiger Moth. Its been a while but seems like they just pull out and press in -then use the inflater stem that comes with the tires to air them up. Kind of tricky to add air-use a low pressure source or you may have an explosion. I did add just a little super goo to help the new stems seal mo better. Does not seem like a very good design but it is low pressure.