The suspension upgrade option supplier is interesting. The company that Morgan refers to web address is
https://www.nitron.co.uk based in Oxfordshire. Their web brochures for the coilovers shows the construction quite well, on paper looks like a good product.. Interestingly, they offer a recommended overhaul service at 24,000 miles or 2 years.. Which I suspect for a worked hard road setup would be about right..
