Beyblade X Knight Fortress Guide

Knight Fortress is product code CX-14, the defence Starter of the Custom Line Expand wave, released in Japan on 28 March 2026 at ¥2,200. The stock name is Knight Fortress GV8-70UN. Official copy is a four-piece CX Expand Blade, a winder launcher in the box, and a Defence-type job: a Blade that sticks out in every direction for counter hits, plus a heavy Ratchet that adds centrifugal force, meant to intercept attacks from any angle. This is not BX-04 Knight Shield and not UX-00 Knight Mail — those are different lines and different parts.

Reading GV8-70UN

On CX Expand the Blade half of the name carries Over Blade plus Assist Blade letters before the Ratchet. G is the Guard Over Blade and V the Vertical Assist Blade, per the official CX-14 product page; 8-70 is eight protrusions at 7.0 mm; UN is Under Needle. Right-spin. Confirm Over Blade, Assist Blade and Bit from the parts in the box and the official CX-14 page rather than treating the decoder as a spec sheet. The Expand Blade and Assist Blades pages decode the extra letters; this page is the defence Starter from that March 2026 CX Expand wave, sitting next to Bahamut Blitz and Ragna Rage.

What the official defence claim is

The Japan listing’s work for this top is intercepting, not a knockout dash. An all-direction counter Blade plus a heavier 8-70 Ratchet is a geometry story: more contact around the circle, more mass in the middle of the stack, Under Needle planting the tip. Paint can wear — the official page says so. A 7.0 mm height is taller than Blitz’s 1-50; that is the point of the wave, not an accident. We do not quote an unofficial gram weight.

Do not mix the Knight names

BX-04 / BX-06 Knight Shield 3-80N is a 2023 Basic Line defence top. BX-13 Knight Lance 4-80HN is a booster with High Needle. UX Customize Set’s Knight Mail 3-85BS is a Unique Line Blade with a metal ball inside. CX-14 Knight Fortress is the Expand CX Starter. A listing that only says “Knight” is not enough. See Knight Shield and the Customize Set page for Mail.

Buying and event checks

CX-14 needs a Beyblade X stadium. The winder is right-spin. Replica “Fortress” listings are not this Starter. CX CUP and 3-on-3 no-repeat rules apply to Guard, Vertical and Under Needle as parts — you cannot run two GV stacks that share Vertical if the format bans repeats. Recheck the official CX-14 page for contents and yen MSRP on the day. See the defence build and Needle Bit guides.

Frequently asked questions

What does the GV8-70UN code on Knight Fortress mean?

On a CX Expand top the letters before the Ratchet name the extra blades. G is the Guard Over Blade, V is the Vertical Assist Blade, 8-70 is the Ratchet at eight protrusions and 7.0 mm, and UN is the Under Needle Bit. Confirm the parts in the box against the official CX-14 page.

Is Knight Fortress the same Beyblade as Knight Shield?

No. BX-04 and BX-06 Knight Shield 3-80N is a 2023 Basic Line defence top, while CX-14 Knight Fortress is the Custom Line Expand defence Starter — different lines and different parts. A listing that only says Knight is not enough.

When did Knight Fortress come out in Japan?

CX-14 was released in Japan on 28 March 2026 at ¥2,200, as the defence Starter of the Custom Line Expand wave sitting next to Bahamut Blitz and Ragna Rage. The box holds a four-piece CX Expand Blade and a winder launcher.

Can you run two Knight Fortress stacks in one deck?

Not under formats that ban repeats. CX CUP and 3-on-3 no-repeat rules count Guard, Vertical and Under Needle as parts, so you cannot run two GV stacks that share Vertical in those formats.