Jan Jonkers (born 29 August 1955) is a former Dutch racing cyclist. He rode in the

1980 Events January * January 4 – U.S. President Jimmy Carter proclaims a grain embargo against the USSR with the support of the European Commission. * January 6 – Global Positioning System time epoch begins at 00:00 UTC. * January 9 – ...

and

1981 Tour de France The 1981 Tour de France was the 68th edition of the Tour de France, taking place between 25 June and 19 July. The total race distance was 24 stages over . It was dominated by Bernard Hinault, who led the race from the sixth stage on, increasing h ...

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* 1955 births Living people Dutch male cyclists People from Halderberge Cyclists from North Brabant 20th-century Dutch people {{Netherlands-cycling-bio-stub