Killer Gemios DF145FS

Killer Gemios was renamed Evil Gemios for the Hasbro release.

Face: Gemios
It depicts Gemini, the twins. 3rd astrological in the Zodiac

Clear Wheel: Gemios
Weight: 2.2 grams Gemios follows the same aesthetic principles as the Gemios Metal Wheel, and Killer, with a similar two-winged design. It is the lightest Clear Wheel available.

Metal Wheel: Killer/Evil
Like its Metal System predecessor Gemios, Killer has a textured, bumpy, two-winged design that ends in two rounded edges. However, unlike its predecessor, it is considerably thinner even with a smaller amount of metal dropping below the base of the Wheel. Being so thin, the edges of each wing do not apply as much force as those of the Gemios Metal Wheel; as a result, Killer loses any of the potential Smash Attack the first incarnation had.
 * Weight: 31.2 grams

Being so thin negates any possible defensive qualities, and though it may seem suited for Stamina, it preforms poorly compared to the top-tier Stamina Wheels such as Virgo, Burn, and Earth.

Track: Down Force 145
DF145 has four upward facing wings protruding from the top of the Track, which aside from giving it extra weight are meant to push air downwards. It is on par with 145 and AD145 in Stamina combinations, however both 85 and 230 are superior and see a more widespread use competitively. Thus, DF145 and other 145 Track-based Stamina customs–which perform poorly against both 85 and 230-based Stamina customs–have been outclassed.
 * Weight: 3 grams

Use in Stamina Customization
If the aforementioned parts aren't accessible, DF145 can still be put to good use in the custom, Burn Bull DF145SD.

Bottom: Flat Sharp
Bottom/Performance tip: Flat Sharp (FS)It is a Flat tip but it has a small Sharp tip in the middle. When launched straightly, the Bey spins on the small Sharp tip. However, when tilted, either from the contact of an opposing Beyblade or from the launch, the Bottom moves in an offensive pattern. However, it suffers from the same problems as other Balance Bottoms, in that the two qualities are compromised, resulting in mediocre performance in both fields.

Other versions:
Flame Gemios 105CS - Random Booster Vol. 6 Killer Beafowl (Green).

Evil Gemios DF145FS - Hasbro release.

Overall.
Killer Gemios DF145FS has no real competitive value and should only be bought for collection.