Making use of the $525,000 bike-sharing grant awarded to Boston in April by the Barr Foundation, Hubway will install 10 new stations in Roxbury and Dorchester, Mayor Martin Walsh announced last week.

The bike-sharing service will seek community input about the proposed locations, which will join the existing 155 stations holding 1,500 bikes in Boston, Brookline, Cambridge, and Somerville. Hubway recently marked its four-millionth trip since its Greater Boston launch in 2011.

Advocates tout bike-sharing as an effective way to improve the health of communities and their residents. Over the past five years, Hubway users have logged more than six million miles, according to the service, burning an estimate 168 million calories and offsetting nearly 2,000 tons of carbon dioxide emissions.

Bike-share expansions happen incrementally, and are limited to a certain range from existing Hubway stands. Roxbury and the northern portion of Dorchester, which currently houses seven stations, are slotted to receive the newest batch of locations.

“New Balance Hubway has demonstrated that Boston can lead, and that Bostonians will embrace new, innovative ways to close transportation gaps, and to enhance mobility for residents and visitors,” said Mary Skelton Roberts, senior program officer at the Barr Foundation, in a prepared statement. The latest expansion will “better connect more people to more places they want and need to go for work, school, and play throughout the region,” she said.

Two workshops will be held this month (May 12, at 6:30 p.m. at the Roxbury YMCA, and May 14 at 10 a.m. at the Dudley Square Library), the city said in a press release, after which the community will be able to fill out surveys determining locations for the new stations. The final public planning stages will take place at open houses in Roxbury and Dorchester in mid-June.