
This gives the Nitro Dynamo ( ニトロダイナモ, Nitoro Dainamo) inside the Vortex Charge the momentum it needs to generate power for transformation and finishers. The user then turns the Vortex Lever ( ボルテックレバー, Borutekku Rebā), a crank that generates power to the Vortex Charge ( ボルテックチャージャー, Borutekku Chāji) energy core generator unit by turning the lever. Kamen Rider Build transforms by inserting two Fullbottles into the Build Driver's Building Modules ( ビルディングモジュール, Birudingu Mojūru) and plugging them into the Twin Fullbottle Slots ( ツインフルボトルスロット, Tsuin Furubotoru Surotto).

This is due to their Hazard Level increasing/decreasing depending on emotions. The stronger the emotions, the stronger the Rider's attacks will be.

Adjust Bind ( アジャストバインド, Ajasuto Baindo): The yellow strap used to fix the Build Driver upon the waist.It is so strong that it can withstand Smash attacks. It utilises high-strength material with heat and impact resistance, allowing it to protect internal mechanisms. Safety Guard Case ( セーフティガードケース, Sēfuti Gādo Kēsu): The outer parts.

During transformation, it develops the Snap Ride Builder ( スナップライドビルダー, Sunappu Raido Birudā) (or any other type of 'Builders'), a compression device resembling plastic model runners, allowing transformation to occur.

The Build Driver is composed of the following parts: Ī Hazard Level of 3 is required to be able to transform using the Build Driver, otherwise the anti-theft security measures on the Driver will activate and electrify the user to unconsciousness. The Build Driver is the first and foremost system developed as part of Project Build, using Fullbottles as its primary collectible device.
