<page_title> 1966 Grand Prix motorcycle racing season </page_title> <section_title> 1966 Grand Prix season calendar </section_title> <table> <cell> 50cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> </cell> <cell> 125cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> <row_header> 50cc winner </row_header> </cell> <cell> 250cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> <row_header> 50cc winner </row_header> <row_header> 125cc winner </row_header> </cell> <cell> 350cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> <row_header> 50cc winner </row_header> <row_header> 125cc winner </row_header> <row_header> 250cc winner </row_header> </cell> <cell> 500cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> <row_header> 50cc winner </row_header> <row_header> 125cc winner </row_header> <row_header> 250cc winner </row_header> <row_header> 350cc winner </row_header> </cell> <cell> Sidecars 500cc winner <row_header> Round </row_header> <row_header> Date </row_header> <row_header> Grand Prix </row_header> <row_header> Circuit </row_header> <row_header> 50cc winner </row_header> <row_header> 125cc winner </row_header> <row_header> 250cc winner </row_header> <row_header> 350cc winner </row_header> <row_header> 500cc winner </row_header> </cell> <cell> Spain Spanish Grand Prix <col_header> Grand Prix </col_header> <row_header> 1 </row_header> </cell> <cell> West Germany West German Grand Prix <col_header> Grand Prix </col_header> <row_header> 2 </row_header> </cell> <cell> France French Grand Prix <col_header> Grand Prix </col_header> <row_header> 3 </row_header> </cell> <cell> Netherlands Dutch TT <col_header> Grand Prix </col_header> <row_header> 4 </row_header> </cell> <cell> Belgium Belgian Grand Prix <col_header> Grand Prix </col_header> <row_header> 5 </row_header> </cell> <cell> East Germany East German Grand Prix <col_header> Grand Prix </col_header> <row_header> 6 </row_header> </cell> <cell> Czechoslovakia Czechoslovakian Grand Prix <col_header> Grand Prix </col_header> <row_header> 7 </row_header> </cell> <cell> Finland Finnish Grand Prix <col_header> Grand Prix </col_header> <row_header> 8 </row_header> </cell> <cell> Ulster Ulster Grand Prix <col_header> Grand Prix </col_header> <row_header> 9 </row_header> </cell> <cell> United Kingdom Isle of Man TT <col_header> Grand Prix </col_header> <row_header> 10 </row_header> </cell> <cell> Italy Nations Grand Prix <col_header> Grand Prix </col_header> <row_header> 11 </row_header> </cell> <cell> Japan Japanese Grand Prix <col_header> Grand Prix </col_header> <row_header> 12 </row_header> </cell> </table>
The 1966 Grand Prix motorcycle racing season consisted of twelve Grand Prix races in six classes: 500cc, 350cc, 250cc, 125cc, 50cc, and Sidecars 500cc.