Gravity Ball 145 is a Spin Track released by Takara Tomy. It debuted in Japan with the release of the BB-60 Random Booster Vol. 4 Mirage Virgo on December 26th, 2009, and in Western countries with the release of the BB-60 Earth Virgo GB145BS Starter Pack in August 2010.
Gravity Ball 145 (GB145) is a wide, round Spin Track with two free moving metal balls. These balls move towards the outside of the Spin Track while spinning, causing additional spin retaining force. While the Spin Track is relatively heavy due to the inclusion of the metal balls, it has been outclassed by later releases of Stamina Type Spin Tracks.
At release Gravity Ball 145 was seen as inferior to Claw 145 (C145), due to the lack of energy-absorbing free spinning wings, making it not as effective against low attacker Beyblades, which were popular at the time. Gravity Ball 145 later found use in Defense Type combinations against Change Height 120 (CH120)-based attacker Beyblades. These types of attackers do not aim to hit the Spin Track, and thus the free spinning wings of C145 are not necessary, and instead a Beyblade could be given a significant increase in the overall weight of the customization. However, it has been outclassed for Defense Type customizations by Spin Tracks such as Boost Disk 145 (BD145).
- BB-60 Random Booster Vol. 4 Mirage Virgo - Earth Virgo GB145BS
- BB-97 Beyblade Ultimate Customize Set Perseus Ver.
- Galaxy Pegasis GB145MS (Black Hole Ver.) (CoroCoro Exclusive)
- Galaxy Pegasis GB145MS (Black Hole Ver.) (Mani Limited Exclusive)
- Infinity Libra GB145S (Bey Ta 1 Exclusive)
- BB-60 Earth Virgo GB145BS
- BB-60 Duotron Launcher - Earth Virgo GB145BS
- BB-60A Spiral Blitz 2-Pack - Earth Virgo GB145BS (Beyblade: Metal Fusion)
- BB-60A Spiral Blitz 2-Pack - Earth Virgo GB145BS (Beyblade: Metal Masters)
- BB-97B Ultimate Gravity Destroyer Stamina GB145S
- BB-97B Beyblade: Metal Masters - Ultimate Gravity Destroyer Stamina GB145S
- BB-97B-01 Gravity Brave Attack 2-Pack - Ultimate Gravity Destroyer Stamina GB145S
- B-115 Solid Iron Showdown 2-Pack - Thunder Leone GB145BS
- B-133 Black Sun Galaxy Pegasus GB145MS (Mail Order Prize Exclusive)