Mayor Bill de Blasio is finally bringing cyclists and drivers together — against him.

Following the deaths of 17 Big Apple cyclists this year, Hizzoner announced Thursday a $58.4 million bike-safety plan that will expand bike lanes, redesign perilous intersections and sic cops on dangerous drivers — enraging motorists over the loss of “thousands” of parking spaces and sending cycling advocates in a tizzy that the plan isn’t going far enough.

“It cannot go on like this,” de Blasio said of the 17 cyclists killed this year during an announcement at PS 170 in Bay Ridge.

Under the initiative, the city is promising to add 80 more miles of protected bike lanes, with priority going to high-crash neighborhoods in Brooklyn and Queens such as Jackson Heights, Corona, Maspeth, Ridgewood and East New York.

The city also plans to re-configure 100 dangerous intersections with an eye to cyclist safety, expand bike parking through public-private partnerships, and strengthen traffic enforcement against trucks, which were behind more than half of this year’s cyclist deaths.

De Blasio aims to encourage more cycling and hopes one in 10 Big Apple commutes will be on bike by 2050.

Some advocates said de Blasio’s proposal did little more than rebrand his flagging Vision Zero safety initiative. The high-crash priority areas, for example, were the focus of a similar effort in 2017.

“@NYCMayor’s new bike plan- largely an expansion & acceleration of Vision Zero – falls short. Reckless drivers will continue to terrorize our streets until there’s a culture shift to prioritize pedestrians & cyclists,” City Councilman Antonio Reynoso tweeted.

Drivers, meanwhile, fumed over a possible loss of parking spaces and said that safety is a two-way street and called on cyclists to do their part.

“So many bike riders are crazy. They ride wherever they like and sometimes if you happen to be in the bike lanes as an Uber driver, because sometimes we have to pick it up or drop the passengers off there, bikers bang on the car, break the mirror,” said Queens Uber driver Lozang Wongdhak, 42.

Others cheered the plan to protect riders.

“There’s a lot [in the plan] that can take cycling forward in the next couple years,” said Bike New York Communications Director Jon Orcutt, a former city transportation official.

Additional reporting by Haley Lerner and Max Jaeger