Det. Wojciech Braszczok and his co-defendant were found not guilty of gang assault, the top charge.
Edwin Mieses spoke out for the first time since being run over and paralyzed last fall by Alexian Lien.
The group shut down Broadway between 189th and 190th Streets around 4 p.m., police said.
The bikers held up traffic on Broadway while they performed wheelies just blocks from the 34th Precinct.
Det. Wojciech Braszczok, 32, did not touch the SUV driver, his lawyer told DNAinfo New York.
A new suspect was arrested in the Sept. 29 attack.
The arrests are expected to be the last in the case.
A former narcotics officer was on the ride where bikers beat a man in front of his family, sources say.
A grand jury indicted biker Robert Sims, 35, for his role in the attack of SUV driver Alexian Lien.
An Internal Affairs Bureau officer waited close to two weeks to reveal he was present at the SUV attack.
NYPD Det. Wojciech Braszczok was arraigned on charges of gang assault, assault and criminal mischief.
Det. Wojciech Braszczok, who allegedly helped bikers attack Alexian Lien, infiltrated Occupy Wall Street.
DNAinfo has assembled a who's who in the violent confrontation between Alexian Lien and bikers.
Wojciech Braszczok, 32, surrendered to cops on Tuesday night on charges he participated in the incident.
Craig Wright, 29, was arraigned on charges of gang assault, assault and unlawful imprisonment.
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