ARRMA Metal Slipper & Input Gears Upgrade Set: BOOST BOX HO Track The built-in 6-axis gyro software

The built-in 6-axis gyro software control system provides amazing stability

How does the brush rinser work

and will have no durability

All links are metal

reduces tire wear

ARRMA Metal Slipper & Input Gears Upgrade Set: BOOST BOX HO Track The built-in 6-axis gyro softwareIntroduction ARRMA makes it easy and affordable for drivers of ARRMA 4X2 BOOST, MEGA, or 3S vehicles to continue on the path to higher and higher levels of performance for example, by upgrading the transmissions with even greater durability using the ARRMA Metal Slipper and Metal Input Gears BOOST Box upgrade package. Its strong metal gears give your transmission the additional toughness needed for stepping up to higher speed, higher performance