does it work SAFELY at the low end for...
does it work SAFELY at the low end for tires?
Yes it will, but it's a very low-volume pump so it'll take weeks to inflate a tire.
Uuhhh...I dunno if that's the direction I'd go. You could walk to an air compressor from the moon faster than pumping a tire up with this. It will thread on to Schrader valves, but you'd need an adapter for presta valves. Remember, after you fix a flat, take the extra time to put the correct pressure in the tire or you'll probably be fixing another flat. Slow down to speed up.....
This is not for pumping tires at all. It is for bicycle shocks. Front forks and rear air shocks.