There is a growing tendency of owners to rely on gadgetry to replace their flat tyres, ignoring the spares or even traveling without one. (shudder) I have rebuilt engines from cylinder re-bore back up and yet I would not want to rely on my skills in repairing a tyre road side,  especially for a performance vehicle. The very idea seems ridiculous. Professional repairs are easy to find on any day of the week. So unless you find a decent set of run-flat tyres in classic Morgan sizes, travel with a reliable spare and check it frequently.

Tubeless rims tyres are far safer than tubed rims. Some owners with wire wheels use tubes. That is a less than ideal. Tubeless tyres will most often give you a decent period to stop the car after they are punctured while still allowing control. Tubed tyres is where the expression "blow out" came from..as that is an accurate description of how they announce their failure. One wheel suddenly going flat is a recipe for loss of control. The difference between a tubeless wire wheel and a tubed wire wheel is simply proper seal of the interior of the rim around the spoke ends. This is easy to repair or even create with "rim tape" or wide enough rim rubber and the right sealant from wire wheel suppliers. HERE for another method.

WHEN YOU SENSE A FLAT

The car will pull to one the deflating tyre's side. With both hands on the wheel, immediately slow and stop the car in the safest place you can find within a short distance. Do NOT try to go further to find a garage or mechanic. You can cause all sorts of damage in a very short distance. You can break pr damage the inner metal webbing in the tyre. You can shred the sidewall or the entire tire. You can split the rubber. You can bend the rim. NEVER run on a flat or flattening tyre.

To change a tyre can be done easily and quickly...with patience and some simple though vital rules for safety

First place your warning signs or flares to warn traffic. If you have an orange safety vest, put it on.

1. Remove the spare and place it flat on the ground next to the flattened wheel. .

2. Get the car jack and the tyre iron or knock off hammer and place near the flat tyre's wheel

3. Use the tyre iron to loosen the bolts to finger tightness or the hammer to make the spinner loose enough to remove by hand.

4. Carefully place the jack so that it will open and rise with its holding point under the  Z frame section adjacent to the flattened wheel/tyre.

5. Turn the jack until it contacts the frame and then keep lifting the car only until the jack seems solid.

6. Slide the spare under the car frame.
 

WATCHPOINT: You will use the extra tyre and rim as an extra protection. If the car falls off the little scissors jack it will only fall onto the tyre under the frame. This is standard roadside format for under the car work.

7. Now jack the car only until the tyre clears the ground enough to remove it. Hold the tyre at opposite sides and wiggle it off.

8. Now carefully replace the spare by sliding it out from under the car AND IMMEDIATELY replacing it with the flat tyre.

9. Holding the tyre the best you can..put it on the hub. Thread the nuts or spinner on as hard as you can hand tighten them. Then
give them a tightening (carefully) with the tyre iron or a few taps with the hammer.

10. Remove the flat wheel tyre from under the car.

11. Lower the car until the tyre touches the ground and then tighten with a bit more force.

12. Lower the car completely and tighten as much as you can.

13. Put the flat on the spare wheel bracket and continue until you find a place to have the flat tyre fixed or replaced professionally.

WATCHPOINT: If your flat was older than the spare or new tyre, then you should use it in the same position again to retain the
same wear. If the flat tyre is no longer safe, then buy two new tyres.