Allan Fleming, 48, from the Faifley area of Clydebank, was struck by an Asda articulated lorry on the A82 at Duntocher at about 11.00 on Sunday.
The incident happened on the westbound carriageway between the Kilbowie roundabout and the Erskine Bridge.
Mr Fleming was pronounced dead at the scene. Police have appealed for witnesses to the crash.

A spokesman for the New York State court system said the pair had reached an agreement, but did not reveal with which parent the teenager would live.
Ritchie's lawyer Peter Bronstein said Rocco would continue to live with his father in London.
The dispute arose in December when Rocco ignored a court order to fly back to live with his mother in New York.
He has since stayed with his father in the UK capital and enrolled in a school there.
Madonna's lawyers have not commented on the settlement.
In December, a judge ruled that Rocco should return to his mother. But she decided not to issue a warrant to enforce the order, urging the pair to reach an agreement.
New York State Supreme Court Justice Deborah Kaplan said: "No-one is disrupting his household other than the inability of the parents to reach a resolution.
"If they cannot resolve this matter then eventually the court will."
Ellen Sigal, Rocco's court-appointed lawyer, said in March that the dispute was causing him stress.
"It's been a very difficult time for him," she said in court. "We hope to put an end to this as soon as possible without exposing him to more litigation, press innuendo, any of that kind of thing."
Madonna and Ritchie married in 2000 and divorced eight years later.
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Police have released the name of a cyclist who died after being hit by a lorry in West Dunbartonshire.
[NEXT_CONCEPT]
Madonna and ex-husband Guy Ritchie have settled a court dispute over the custody of their 16-year-old son Rocco.