David Beckham -- Speeding Recklessly Before Crash

David Beckham was driving like a MANIAC before swerving into another lane at a dangerously high speed ... and rear-ending a stalled vehicle earlier this month -- this according to multiple 911 calls.

One caller -- who claims she was driving behind David for several miles-- reported that David was "driving recklessly" and "speeding really bad" before slamming into the stalled car on May 6.

Another caller claims David was "definitely speeding" -- pulling in and out of the carpool lane ... "breaking a couple traffic laws."

As we previously reported, Beckham rear-ended another car with his Black Escalade ... on one of the busiest highways in L.A. -- and the other driver had to be taken to the hospital.

Beckham -- whose son Brooklyn was in the car with him at the time -- has not been arrested or cited.

A spokesman for Beckham tells us, "As unfortunate as accidents are, David was not cited by the police at the scene for any violations."

CLICK HERE to listen to the 911 calls.

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