Estimated number of Citi Bike bikes

Docked (available right now) and in circulation (estimated total fleet minus what is docked). The method is explained on the About page.

Mechanical docked
18848
Mechanical in circulation
185
Electric docked
15191
Electric in circulation
525

Estimated total fleet: 19033 mechanical bikes, 15716 e-bikes (highest count ever observed).

Today, bikes in circulation (per hour)

The total fleet does not change within a day: only the split between docked and in circulation moves. This chart keeps the estimated fleet fixed and only varies the share in circulation.

Estimated total bikes, last 90 days (daily peak)
Estimated total bikes, last year (weekly peak)