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