This was the beginning of his motorcycle racer career lasting until 1955 .
Krackowizer was then also in the senior race three laps into the lead before he had to abandon because of a defect .
This was the beginning of Krackowizer 's motorcycle racer career lasting until 1955 .
Krackowizer was then also in the senior race three laps into the lead before he had to abandon because of a defect .