I had an airhawk on the Alp for a while; it initially feels a bit wibbly wobbly and you feel slightly detatched to what the bike is doing but you do get used to it, it does noticeably increase seat time before 'numb bum' sets in.
My biggest issues with it were;
if you forget to remove it each night (camping etc) you end up sitting on a soggy nappy for the next day if it rains overnight.
But the main issue for me - it gave me a bad lower back, it seems my slightly splayed leg riding position, funnelled the air (ooer missus) through the vented seat pad which chilled my bum the chill then travelled into my lower spine which was horrible, fine in warmer climates no good for me in typical uk weather.
Invariably you still end up with a numb bum after long days, overall, too many downsides for me & not a patch on a good comfy stock seat (in my experience it's; XCountry, Vstrom, CB500X for the best stock seats )
Phil
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