GB145 is a wide, round track featuring two free moving metal balls. These balls move toward the outside of the Spin Track while spinning, causing additional spin retaining force, similar to Draciel Metal Ball Defenser's Metal Ball Base from the plastic generation. Weighing in at 4.5 grams due to the metal balls, GB145 is relatively heavy but it cannot hold its own compared to subsequent parts. At release, it was seen by some as inferior to C145 due to the lack of energy-absorbing free spinning wings, making it not as effective as against low attackers such as Quetzalcoatl 90RF, which were popular at the time. GB145 used to shine when utilized in Defense customizations against high CH120-based Attackers, such as MF Lightning L Drago CH120RF. These types of Attackers do not aim to hit the Spin Track, and thus the free spinning wings of C145 are not necessary, and you instead get a significant increase in the overall weight of the customization. However, it has been outclassed for Defense customizations by BD145, E230 and TH170.
This Spin Track has found use in the Attack field as a replacement for S130.
Use in Attack Customisation
Paired with Flash, a top-tier Attack 4D Metal Wheel, GB145's mobile metal balls create a higher Flywheel Effect that gives more force to Flash's hits. GB145 therefore succeeds in reproducing the outward weight and shape of S130, however the slighty variation in height is enough to make S130 the preferred Spin Track to combine with Flash against most opponents.
- Earth Virgo GB145BS - Random Booster Vol. 4 Mirage Virgo
- Earth Virgo GB145BS - Faceoff: Spiral Blitz