LAS VEGAS - Diego "Chico" Corrales, who won titles in two weight classes and won one of the most exciting boxing matches in recent years, died Monday night in a high-speed motorcycle crash. He was 29.

Corrales was riding a new motorcycle when he ran into the back of a car while trying to pass at high speed on a busy residential street about seven miles west of the Las Vegas Strip, police said yesterday.

Corrales was thrown from the motorcycle, which collided with an oncoming car, and pronounced dead at the scene of the 7:22 p.m. crash.

His promoter, Gary Shaw, said Corrales, whose career had faltered the last two years, recently bought a racing motorcycle and was riding it when he was killed.

"He fought recklessly and he lived recklessly," Shaw said. "That was his style."

Corrales, who fought most of his career at 130 pounds, was a big puncher best known for getting up after two 10th-round knockdowns to stop Jose Luis Castillo on May 7, 2005, in what the Boxing Writers Association of America and numerous boxing publications called the fight of the year.

His career record was 40-5 with 33 knockouts.

Corrales, though, was knocked out by Castillo in the rematch and then had three straight fights undermined at the weigh-in.

He lost his last three fights, including his final one, on April 7, against Joshua Clottey in Springfield, Mo.

Corrales was born in Sacramento, Calif., and lived in Las Vegas in recent years. He won his first 33 fights and held a piece of the 130-pound title before he was stopped by Floyd Mayweather Jr. in January 2001.