Here is the full list of all 20 LocoCycle achievements.
Finished Prologue.
Finished El Highway.
Finished Hidden Canyons.
Finished Cruisin' Keys.
Finished Bi-Polar Offroads.
Finished Neighborly Farmlands.
Finished Final Level.
Countered 50 total enemies.
Countered 150 total enemies.
Combo streak reached 250.
Combo streak reached 1,000.
Blew up 200 civilian cars.
Took out a Big Arms car using only melee.
Blew up Leaper Agent's car before he reached you.
Beat a tanker truck sequence in less than 60 seconds.
Took no damage during a whole level.
Maxed level up on all weapons and abilities.
Unlocked all film bonus content.
Unlocked all game bonus content.
Unlocked all bonus content.