Here is the full list of all 45 Zero Gear achievements.
Do a flip.
Do a barrel roll.
Win in goal mode after being down by 2.
Get iced 5 times in one game.
Win a race without using boost.
Win a race without using a weapon.
Hit 6 players with a mine.
Drive 500 miles.
Remain in first place for an entire race.
Score 10,000 accumulative points in target games.
Finish 1st 100 times.
Draft off a player for 10 straight seconds.
Repulse 5 players at once.
Finish 2nd 50 times.
Reset yourself 50 times.
Play a game with only pirates.
Play a game with only military officers.
Play a game with only gentlemen.
Play a game with only machines.
Play a game with only inspectors.
Get hugged 3 times in one game.
Finish 3rd 25 times.
Do a triple flip.
Boost for 30 straight seconds.
Cross the finish line in first place while frozen.
Accumulate 15 minutes of airtime.
Do 20 flips.
Lose first place in the last seconds of a race.
Use a spring 50 times.
Stay airborne for 6 seconds.
Win a goal mode game in overtime.
Be a good sport.
Win a race with the indie slider activated.
Steal the arrow 5 times in one tag match.
Fall off a map 5 times in one game.
Do 10 barrel rolls.
Punch 2 players at the same time.
Win a race while airborne.
Overcome the player in first place and win the race in 1 second.
Play in a game with 3 other people on your friends list.
Do a double flip.
Win back to back games in goal mode without the opposing team scoring.
Drive 1,000 miles.
Drive 2,448 miles.
Get knocked 100 meters from the platform in Fallout.