thanks for your thoughts RA. we all have a rough idea on serviceable flying hours for a wing, and a reserve parachute , fabric is far easier to predict in terms of degradation than a motor but i did think there might be some correlation, after all maintenance schedules are expressed in flying or run hours . Agree i am complete believer in good and timely maintenance . i drive a van which is now at 240.000miles still going strong and always been maintained . with my PAP Ross 100 now at over 600 hrs there is not one mark on the frame and never really spent lots on maintenance. I will replace it soon and it doesnt really owe me anything and dont worry I wont be selling it to an unaware newbie if at all. ! I guess its a testament to the quality of manufacture, engine and frame both. not sure all paramotors on the market would last that long , but then again having new gear if you can afford would give a bit more peace of mind