What is a tandem bicycle?
AnswerA bike built for two riders, one behind the other
Tandems have seats and pedals for two riders who pedal together.
Vehicles · Facts & stats
Bike facts & stats
7 fact-checked facts about bicycles, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
In the Tour de France, what colour jersey does the overall race leader wear?
AnswerYellow
The yellow jersey (maillot jaune) marks the rider with the lowest overall time.
Going deeper
Karl Drais's 1817 'running machine' was unusual because it had no...
AnswerPedals
Riders pushed the draisine along with their feet on the ground.
In what year was the first Tour de France held?
Answer1903
The first Tour de France was held in 1903.
What does a derailleur do on a bicycle?
AnswerMoves the chain between gears
A derailleur guides the chain from one sprocket to another to change gear.
Expert level
Who is credited with developing the first practical pneumatic bicycle tyre, in 1888?
AnswerJohn Boyd Dunlop
Dunlop, a Scottish vet in Belfast, made an air-filled tyre for his son's tricycle.
Pairing a bigger front chainring with a smaller rear cog gives what kind of gear?
AnswerA harder, higher gear for more speed
Each pedal turn spins the rear wheel more times, so it's faster but takes more effort.
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