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OverDrive was a heavyweight robot built by C2 Robotics, which competed in the first two seasons of ABC's BattleBots reboot.

OverDrive was built by Christian Carlberg formerly of Team Coolrobots, with its primary weapon being a lifter in ABC Season 1, and a vertical spinner in ABC Season 2. OverKill used brushless hub motors used in e-bike kits to drive four tall, thin wheels which were positioned at a slant on each side of the robot. Christian Carlberg used these wheels as he had plenty of them to use, and they were easy to use as a drive train.

OverDrive performed decently in its debut season as it reached the Round of 16 before losing Witch Doctor.

For ABC Season 2, OverDrive was completely rebuilt, now armed with a vertical spinning bar. The slanted four-wheeled bot had become a two-wheeled competitor, and this iteration was smaller than the original. Unfortunately, this version of OverDrive lost its first and only match to Escape Velocity, being eliminated from the tournament at the first hurdle.

OverDrive would not return for Season 3 on Discovery, as it was replaced with Christian Carlberg's newest heavyweight, Mecha Rampage.

OverDrive in promotional material for ABC.

After a couple of seasons away, Christian Carlberg would return to BattleBots as part of Yeti for the 2021 season. Yeti's builder Greg Gibson cites Christian Carlberg as his inspiration for getting into the sport.

Robot History[]

ABC Season 1[]

OverDrive vs. Chomp

OverDrive almost flips Chomp.

OverDrive's first ever opponent was Chomp, designed by Zoe Stephenson. Chomp made many attempts to throw flames at OverDrive, but Christian Carlberg's bot was simply too fast for Chomp to make contact and grab. OverDrive made one attempt to flip Chomp, but Chomp luckily stayed on its wheels. Despite this, without the use of its claw, Chomp was earning very few points before being backed into the BattleBox screws in an incredible move by Overdrive. The screws carried Chomp up onto the rails, where it could not escape. This meant OverDrive won by a KO after 1:57. This win put OverDrive to the Round of 16.

OverDrive vs. Witch Doctor

Witch Doctor hits the left side of OverDrive.

OverDrive now faced the No.9 seed Witch Doctor. As the fight began, OverDrive charged at Witch Doctor head-on, slamming into Shaman before getting a hit on Witch Doctor. After a brief game of cat-and-mouse, OverDrive ran into the wall, allowing Witch Doctor to strike. After another chase, Witch Doctor hit OverDrive again, and then a third hit flipped OverDrive upside-down. Struggling to right itself, OverDrive ran into the wall and Witch Doctor struck it again, flipping over but taking out one of its wheels. With the loss of its mobility, OverDrive was rendered useless and Witch Doctor took the win by KO at 1:24. As a result, OverDrive was eliminated from the tournament.

ABC Season 2[]

OverDrive vs. Escape Velocity

The first hit between OverDrive's spinning blade and Escape Velocity.

Escape Velocity flips OverDrive in the final seconds.

The Grawlix message on OverDrive's base.

OverDrive's only opponent in the tournament was Escape Velocity. The fight started well for OverDrive, with Escape Velocity's small full body spinner crashing into the wall and getting flipped over. However, things quickly

turned in Escape Velocity's favor when OverDrive's spinning bar broke shortly after that hit. Escape Velocity suddenly had the upper hand, flipping OverDrive until it landed on its front before the time ran out. Escape Velocity won on a unanimous 3-0 judge's decision and OverDrive was eliminated from the tournament. Unfortunately, OverDrive was not chosen to be a wildcard, meaning it was eliminated from the tournament again.

OverDrive vs. Bad Kitty vs. The Ringmaster

Bad Kitty scoops OverDrive across the BattleBox floor.

OverDrive is smacked against The Ringmaster during the rumble.

OverDrive also participated in a small rumble with Bad Kitty and The Ringmaster, with Carissa Carlberg taking control of OverDrive. The fight started out relatively well for OverDrive as it took on Bad Kitty, but the feline bot ripped off a side panel of OverDrive's orange wedge, and it was quickly flipped over in short order and The Ringmaster came in and damaged one of OverDrive's tires. OverDrive was left spinning in circles and was counted out, giving The Ringmaster the win.


ABC Season 2
2016 Championship
8th seed
Round of 24 vs. Chomp Won (KO)
Round of 16 vs. Witch Doctor (9) Lost (KO)
ABC Season 2
2016 Championship
Round of 48 vs. Escape Velocity Lost (KO)
Exhibition Matches
Rumble vs. Bad Kitty, The Ringmaster Lost (KO)


  • Wins: 1
  • Losses: 3
Competition Wins Losses
ABC Season 1 Chomp Witch Doctor
ABC Season 2 None

Escape Velocity

The Ringmaster

Faruq Tauheed Introductions[]

"Somebody call the jaws of life. You're about to get a crash course in destruction. It's OVERDRIVE!"

"It's built by an air force engineer, so you know it's going to be the bomb! Let's make some noise for OVERDRIVE!"

"Get ready for some father-daughter robot slaughter. It's OVERDRIVE!"

"It's not a robot, it's a doom buggy. Strap in for OVERDRIVE!"


  • The robots who defeated Overdrive (Witch Doctor and Escape Velocity) would both later fight Tombstone in the next round of their respective season and lose.
  • OverDrive featured in curious promotional posters for the show in 2015, being erroneously described as having saw weaponry.