Piotr
Retro Guru
Mtb beginnings in Poland- Kraków in pictures in my blogspot
https://velotech-pl.blogspot.com/2018/09/krakowskie-retromtb-poczatki-ocalic-od.html
https://velotech-pl.blogspot.com/2018/09/krakowskie-retromtb-poczatki-ocalic-od.html