Adheon4 with Ocheonsung 25c TPU is 20 kilos.
During testing it showed performance that I really liked, but
since the TPU 2 went flat,
I replaced it with a lightweight tube and did a round trip to Chuncheon today,
and it seems to meet about 95% of the pedaling feel I was hoping for.
After 200 kilometers, my poor fitness made it feel like dying,
but still, since the pedaling is light, climbing hills and such feels easier.
I think if I just build up my fitness a little more, I can fill that missing 5%.
It was so tough, I need to have a drink of makgeolli and rest.
Once my fitness recovers, I need to check how incredibly light the uphill felt without resistance.