I bought an Airhawk last year... was skeptical - but needed to improve the comfort on the KTM950 Supermoto for a long weekend of about 1000 miles ....
Before I struggled after 100 miles and was grateful for a fuel break.... and knackered by the end of a day (250 miles)
I found it needs some fiddling to get it inflated just right (less air than you would think ..otherwise it moves too much .) and then really helped
- at the end of last year I had a spare day and set off towards Wales ..... 600 miles later - and starting to get dark I got home ... oops....stopping only for Petrol / Coffee and a quick lunch ...could plot on map based on Fuel stations on Credit card
As well as helping on the seat comfort I also found it strangely helped my body position so I had less back ache as well
Suits me as I can swap between bikes and remove for a standard look on short blasts....
If you can find someone local with one its worth trying first as it only takes 5 mins to fit / remove - I`m based in Swindon....if its close ??
Rob