I think the convex surface would also mean a very small contact area on a soft alloy surface, causing it to wear quite rapidly, whilst a steel wheel's bolt hole is sharp edged and very hard.

I do wonder out of curiosity how Eriba brand/factory recommends jacking an eriba 320 up. I’ve been envolved with wheels and tyres my entire life & jack cars etc virtually every day and on my 320 with a motor mover fitted behind the axle ( which raises other problems which advl didn’t tell me at time of purchase) and on the door side with the step the access is absolutely awful. Everyone gets punctures occasionally & if you’re on a busy rd & out of phone signal so you can’t ring any emergency services ( not that I have ever used them) and you have to do it yourself or walk. I’m just back last night from the far end of Mull next to Iona & it’s a long tow back to Cumbria. I’m always conscious that when I’m going for by booked ferry & if I got a puncture it wouldn’t be a quick chain the wilds of mull

It's not Eriba brand recommended, but Colin suggests the Coram/Land Rover jack from early Discoveries. I got one and it's perfect for the job - two stage "ram", so it goes both low and high and the shaped top fits AlKo axles well. I have used mine on several occasions with great success. The long activator arm allows you to push it into place from a distance. Much, much smaller than a trolley jack.

Hi everyone, during my trip to Morocco I had to replace the right-hand tire. I used my Land Rover's scissor jack without any problems. To ensure stability, I also used the right-hand parking steadies.

This was so much easier on my Swift Basecamp and Adria Dart. I was able to fit jacking points to the chassis using the pre-drilled holes.

That's not possible with the Eriba (Knott?) Chassis. I use a Purpleline Kojack bottle jack, with a top U plate to ensure it doesn't slip off the Chassis.

@caravan nut, I can confirm that the Knott chassis is virtually identical to the alko version, at least as far as I can remember!

The one advantage of the Knott gear is that the axle is a square box section, so a nice flat area for jacking, ans a rubber pad on my aldi bottle jack works just fine.