Hi velocipedio. "Sora" is another pronunciation of my name's Chinese character. Your Japanese member well know, we Japanese use Chinese character. And one character has several pronunciations.
And of course I know the the component group, I think maybe it is familiar to cyclists. So I decided.
I usually ride crossbike to the interior. I really agree your member, the long distance narrow road touring in Japan is really awesome.
Sora Suga
WADACHI -Enjoy cycling and drinking around Japan! -