A young Manhattan woman was thrown from her CitiBike and punched until she was black-and-blue by a pair of thugs in Midtown on Tuesday night — and she described the terrifying, random attack to The Post.

The two men, who were still at large Friday night, stood side by side, blocking the bike lane as she rode toward them on Eighth Avenue, she recalled, asking to be identified only by her first name, “Ina.”

The two locked eyes with her as she rode toward them, said the woman, who is in her 20s.

Then they broke into a run, charging toward her, laughing.

“This is in no way a case of a pedestrian bumping into me [accidentally] and a fight breaking out,” said the still-shaken woman.

“Two men started running towards me and locked eyes with me and started laughing. I think their goal was to knock me down — so they body slammed me.”

The woman said she’d been riding home at around 10 p.m. after having dinner with friends.

She was near W. 35th street when the pair inexplicably struck, throwing her from her bike.

Aghast at the assault, Ina said she confronted the two men.

“I asked them what the matter was,” she said.

“What the f—k did you just say to me?” growled the man who’d straight-armed her and knocked her from the bike.

That man then swung at Ina, glancing her jaw but connecting with shoulder, she said.

“The punch was so strong it knocked me down. And then on the ground, he hit me again and said, ‘that’ll teach you’,” Ina said.

She said her adrenaline started racing, so she started recording the men with her cellphone camera.

Ina said she has bruising on her face and shoulder from the attack, but added that she feels lucky she wasn’t more gravely injured in the attack.

She’s reported the attack to the police, describing her attackers as heavily tattooed. One has a gun inked on his neck, she said.