As I recently my bike serviced something occurred to me that at the end of Airwings hung a drop of oil. So I thought, this is not good sign and inquired about the internetwork what you could do there. And I came over to several discussions sprung Sattelstuetzten. After much back and forth, I then ordered the Thudbuster LT. And now after three weeks: I agree with the ignorant. For me I can say that I ignorant was satisfied. After the first few meters with the TB LT on a gravel road, I could not believe it. I went firmly convinced that Airwings is the best system. Okay, maybe that was four years ago. But now ... What has always bothered me about the Airwings was the fact that by the inclination of the seat tube towards the rear the travel of the support was never perpendicular to the ground and the shocks but almost always come vertically from below. The best that could be felt when I let my butt perpendicular drop to the saddle to the ground: no / no suspension. I have my butt perpendicular 'cast' on the saddle to the saddle tube then it bounced. The parallelogram of TB LT is there a completely different geometrical approach and it shows immediately!