Engine Gear System

Engine Gear tops were introduced with the G-series, and retain the same major design of a typical Beyblade, including a Bit Piece, an Attack Ring, a Weight Disk, and a Blade Base; Engine Gear tops, however, replace the typical Spin Gear with a more advanced Engine Gear, which affects the movement of the top during the battle. Each Engine Gear includes a Turbo Winder to wind-up the engine core. When in action, the Blade Base releases the Engine Gear determined by the Blade Base's clutch lock system. This series of beyblades were the last ones to be made of plastic parts with the exception of the weight disks. The later ones were semi metal or completely metal.

Engine gear types

 * Engine Gear: The default engine gear that comes with most beyblades in G-revolution, but their tip is varied.
 * Turbo Engine Gear: First released with the left-spinning Dragoon GT, the Turbo Engine Gear gives an even more powerful release than that of the original engine gear that comes with a larger turbo winder.
 * Reverse Gear: The Engine Gear spins in the opposite direction of the rest of the top. This engine gear is only bundled with Dranzer GT, which uses this gear for a reverse zig-zag attack. Although this attack can be very effective, the beyblade loses spin when the gear kicks in. As with Dragoon GT, it comes with a larger turbo winder.
 * Gyro Engine Gear: This unique type allows the tip of the Beyblade to spin independently. Thus the beyblade can be launched without a launcher, as a ripcord can be inserted into the beyblade.

Blade base types

 * Instant Release or First Clutch: The Engine Gear triggers at the beginning of the battle, resulting in a large burst of speed almost immediately after launch.
 * Steady Release: The Engine Gear triggers at the beginning of the battle, but releases earlier because of the weight of the beyblade on the larger or wider revolving blade base, which is attached directly to the engine gear. Used in Rock Bison and Wolborg 4.
 * Hit Release or Final Clutch: The Engine Gear triggers when the blade base collides with an object, or when the beyblade is running out of spin, and releases a quick burst of speed. The clutches must be pulled prior to winding the spin gear.
 * Middle Clutch: Built exclusively for Dranzer GT, the middle clutch has a similar design to the final clutch base, but releases the engine gear in the middle of the match; earlier than a final clutch but not instant as in the First Clutch base.

Customizable engine weights
For the 2 GT Series Beyblades that were released, the Engine Gear that comes with them is intended for use with the Customizable Engine Weight of each top. The Engine Gears, however, can fit with the "Clutch" bases.