Capital Bikeshare (also abbreviated CaBi) is a bicycle-sharing system that serves Washington, D.C., and certain counties of the larger metropolitan area.

[9] D.C. Department of Transportation Director Gabe Klein came into office four months later and was eager to expand it but found the private partner had a "lackluster commitment.

[16] The District's share of planning, implementation and first-year operating costs was partially financed by a $6 million grant by the United States Department of Transportation.

In April 2011, Capital Bikeshare administrators said they expect earned revenue to cover 50% of the system's annual operating costs.

[19] In September 2011, Capital Bikeshare announced it had reached 18,000 members and one million rides in its first year of operation, doubling initial expectations.

[26] Also in March 2012, the Arlington County government gave away 550 red Capital Bikeshare helmets and twice as many flashing safety lights as part of a promotion.

Transportation agencies in each jurisdiction select the location of the rental stations, as well as the number of bike docks, depending on planners' estimates of local demand.

[28] Most of the system's users live in or near central business districts; stations in the poorer eastern portion of the city are comparatively underused.

[31] Arlington County also announced plans to add 30 stations in fall 2011, primarily along the densely populated corridor between the Rosslyn and Ballston neighborhoods, and 30 more in 2012.

The expansion was paid for by a $1.288 million grant from the National Capital Region Transportation Planning Board with a $688,000 local match.

[34] Officials also cited plans to add 50 stations and 400 bicycles in southern areas of the county, including Bethesda, Silver Spring, Friendship Heights, and Takoma Park.

[38] On September 1, 2016, the system celebrated the installation of its 400th station at Division Ave & Foote St NE in Washington, DC.

[39] On October 21, 2016, Fairfax County, Virginia deployed 29 stations and 212 bikes in the Reston and Tysons Corner areas.

[40] On June 1, 2018, Capital Bikeshare expanded its territory for bike rentals, establishing itself in Prince George’s County, which became the sixth jurisdiction to join the system.

A wireless data link connects the docks and station kiosk to a central bike-tracking and billing database.

[47] Riders can use the Capital Bikeshare website and smartphone applications to see where rental stations are located and how many bikes and empty docks they have.

In November 2018, approximately 80 electric bikes, branded CaBi Plus, were introduced by Bikeshare operator’s parent company, Lyft, as a pilot.

[53] In July 2020, a new model of electric bike was introduced that fixed the braking issue and came with a front wheel motor, infinite shifting and a built in lock for dockless parking.

[58] In response to WMATA's SafeTrack in 2016 and in line with broader industry trends, a $2 single trip fare was offered for rides up to 30 minutes.

[59] In October 2021, the seven-member jurisdictions which own Capital Bikeshare made the largest adjustment to pricing since the system began operation.