Bicycles On Stamps...

Poland
The 9th International Peace Race Warsaw-Berlin-Prague
April 25, 1956
The Peace Race, first organized in 1948, was an annual multiple stage bicycle race held in the Eastern Bloc states of Czechoslovakia, East Germany (DDR) and Poland.

Germany
For the Youth Charity stamps
April 16, 1985
Historical Bicycles:
Drais-Laufrad 1817
NSU Germania-Hochrad 1886
Kreuzrahmen-Niederrad 1887
Adler-Dreirad 1888

DDR (Germany)
The 22th Olympic Games 1980
July 8, 1980
One of the designs depicts cycling race.

Bicycling, printed by lithography, and issued by Costa Rica on July 27, 1984 as one of a set of six stamps publicizing the 1984 Summer Olympic Games, held in Los Angeles, California, Scott No. 306.

- nethryk

France
Historical Bicycles
June 17, 2011
Bicycle with tires (1890)
Draisienne (1817)
Bicycle with pedals (1865)
City Bicycle
Bicycle with chains
Penny-farthing

Andorra (French Administration)
Tour de France
July 19, 1993
The 1993 Tour de France was the 80th Tour de France, taking place July 3 to July 25, 1993. It consisted of 20 stages over 3714.3 km.

France
Cycling World Championships
July 24, 1972
The 1972 UCI Road World Championships took place on August 6, 1972 in Gap, France. Only two professional races took place due to the Munich Olympics.

Young bicyclists, designed by Lutz Lüders, printed by lithography, and issued by East Germany (DDR) on July 3, 1979 as one of a set of two stamps commemorating the 7th Children's and Youth Spartakiad, Berlin, Scott No. 2020, Michel No. 2433.

- nethryk

Bosnia and Herzegovina (Croatian Post Mostar)
World Bicycle Day
July 16, 2011

Cyclist and winged shadow, designed by Igor Piacka, printed by lithography (Cartor), and issued by Slovakia on March 30, 2005, Scott No. 476.

- nethryk

Portugal
Radical Sports
April 17, 2015
Set of five; one stamp depicts BMX.
A BMX (bicycle motocross) is an off-road sport bicycle used for racing and stunt riding.

Austria
The 150th Anniversary of the Birth of Johann Puch
June 27, 2012
Johann Puch (1862 - 1914) was a Slovene inventor and mechanic. From 1885 he concentrated on bicycle manufacturing and soon became a noted specialist. In 1889 he founded his first workshop in Graz and started to distribute Styria safety bicycles. His enterprise quickly expanded and sold bicycles all over Austria-Hungary, as well as exporting to the United Kingdom and France. By 1912 Puch's factory employed 1,100 workers and manufactured 300 cars, 300 motorcycles and 16,000 bicycles per year.

Guernsey
EUROPA - Transportation and Communications
May 10, 1988
Two se-tenant pairs, one depicts carriages and bicycles as means of transportation.

New Zealand
Children Health
June 21, 1995
The two stamps depict activities at Children's Health Camps, one shows a girl on bicycle.

FRG (Germany)
Stamp Day
October 15, 1987
The design depicts "Loading the Mail Train" with carriage, bicycle, tricycles and mobile post office on railway.