Tyre inflation

I would go to one of the tyre shops in town - but this is small town Cornwall and I only have a choice of four. Give the man a tip and he will do the job for you.

I got fed up with the 12v versions as they always blew the fuses, especially trying to get to the high pressures required by some motorhomes. I purchased a mains 230v version (see picture) which does the job with no trouble at all. I appreciate that to use it you have to have access to mains but as I tended only to use it at home that was not an issue.

David

There must be a way of accessing the battery terminals. Is it just a cover in the way? I have the Ring compressor and while I do not have a Fist chassis, all I do is remove the cover to expose clip on points.

peedee

I have a small 40 Ah battery which is used for both inflating the car tyres and running the pump for the air awning.  Much more convenient, in the case of the latter, than having to bring the car close to the awning.

On the subject of that Ring RAC tyre pump - I would strongly advise looking for something else.  I've had two - the first one being returned under warranty. They are good in the sense that they're capable of high pressures and quick to inflate but the fittings that connect the air hose to the pump are brass and I've had two sheer, rendering the whole thing useless. Added to which, the long plastic air hose seems an added convenience - in practice, it's a pain.  It gets tangled around everything and trying to get it coiled up again to go in the bag is a p.i.t a. !!

I gave up with it in the end and went back to a rechargeable one, which so far, has proved to be a much better.  Not sure it would achieve the pressure you are looking for, though.

Most track bike pumps go to 100psi (7 bar). 

Not had any problems with this Ring one my son bought as a present. Easily reaches your required pressure and is rechargeable via a usb lead or can be used from a 12volt socket, although I’ve not tried that option yet, as like DK I was worried about blowing fuses. It wouldn’t be suitable for inflation from flat but is perfectly adequate for top up / adjusting pressure.

5.5 bar = 80 psi. That sounds like to maximum pressure for your tyres and must give an uncomfortable ride. There have been previous discussions on here about working out suitable pressures base on the vehicle weight distribution. We used 60 front, 65 rear on our 3.5 tonne van following advice from Continental. We didn't have tyre pressure monitors so that was not a problem.

I have the predecessor to this Bosch 18v battery pump, goes to 10.3 bar (150psi). Needs mains to charge but charge lasts a long time.
https://www.bosch-diy.com/gb/en/p/universalpump-18v-0603947100

I thought 5.5 bar seemed high but it's what is recommended by Roller Team. 

You’re opening a can of worms there! There can be a huge discrepancy between the base vehicle/chassis manufacturer’s pressures and that of the motorhome converter. Add to that specific tyre manufacturer recommendations. What a mine field!