Wall Street executives are abandoning expensive limo rides and their gas guzzlers as soaring fuel costs make them sweat – and are opting to bike to work.

As gas prices in the city hover over $4 a gallon, Eric Goldberg, CEO of Portware, a high-flying trading software company, has sold his car and now cycles the two-and-a-half miles between Gramercy Park and his company’s Broadway office two to three days a week.

“I could also take the limo home late but biking back to Gramercy sets a good corporate example,” says the 47-year-old executive.

David Harris, 43, CEO of the CBOE Options Exchange in Manhattan, has one of the longest bike commutes – a grueling 50-mile roundtrip from his home in Ridgewood, NJ, starting before dawn, to his office on Broadway.

A fitness buff, Harris calculates daily savings of $60, riding his titanium racer, instead of driving.

By comparison, hedge-fund honcho Mark Gorton, 41, who runs Tower Research Capital, clocks a mere 11 mile roundtrip daily, cycling from his Upper West Side residence to work in TriBeCa.

When investment banker – and biker – Jonathan Knee, of Evercore Partners, chained his two-wheeled transport to a tree near his East Side offices, a stylish area lined with black corporate limos, a driver rolled down the window and looked at Knee.

“He asked, ‘did I have a good job?'”

“I said, ‘Yeah.’ Then he replied, in astonishment, ‘What the hell are you doing on that bicycle?'”