TG 543 Jan Malmberg, Sweden.
After the 2018 season, Jan replaced the two blowers on his Derringer
V-twin with one big supercharger.
Jan Malmberg's personal best time is 7.793, set at Hoskovice, Cz in
2018
TG 543 Jan Malmberg, Sweden.
After the 2018 season, Jan replaced the two blowers on his Derringer
V-twin with one big supercharger.
Jan Malmberg's personal best time is 7.793, set at Hoskovice, Cz in
2018