How many letters does the top answer for “a vehicle with three wheels that is moved by foot pedals” have?

The most common answer is tricycle (8 letters).

Crossword clue: a vehicle with three wheels that is moved by foot pedals

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

tricycle 8 letters wn-def

a vehicle with three wheels that is moved by foot pedals

trike 5 letters wn-def

a vehicle with three wheels that is moved by foot pedals

velocipede 10 letters wn-def

a vehicle with three wheels that is moved by foot pedals