There are five achievements or trophies for The Lost and Damned, worth a total of 250 gamerpoints for Xbox LIVE. All are Bronze trophies for the PlayStation Network.
Achievement: One Percenter - 5GS
Description: Help Billy get his bike back.
Requirements: Complete 'Clean and Serene'
Achievement: The Lost Boy - 25GS
Description: Become leader of The Lost.
Requirements: Complete 'This Shit's Cursed'
Achievement: Full Chat - 70GS
Description: Build Terry and Clay's toughness to 100%.
Requirements: Keep using Terry and Clay's assistance in successful missions to toughen them up.
Achievement: Easy Rider - 100GS
Description: Finish the story.
Requirements: Complete the main story. Will unlock after the credit sequence.
Achievement: Get Good Wood - 50GS
Description: In the bike races, whack off 69 bikers with a bat.
Requirements: Exactly as the description says. Easiest race to get this on is Tudor Docks as there are plenty of straightaways to line up and power up your shots.