Shift Brace

"Start your Engine!"

- Activation announcement via Drive Driver

"Drive: Type (Shift Car)! (music)"

- Transformation announcement via Drive Driver

"Tire Koukan: (Shift Car)! (music/sound effect)"

- Tire Exchange announcement via Drive Driver

"Hissatsu! Full Throttle: (Shift Car)!"

- Finisher announcement via Drive Driver

"Nice Drive!"

- Deactivation announcement via Drive Driver

The Shift Brace (シフトブレス) is one of Kamen Rider Drive's transformation devices, by being the device that holds Drive's Shift Cars as a remote for his Drive Driver.

Functionality
To transform, the user must first use a Type Shift Car and turn the Advanced Ignition (アドバンスド イグニッション) key on the Drive Driver. Afterwards, once the selected Shift Car is rotated, it must be inserted forwardly into the Shift Brace via the Shift Landing Panel (シフト ランディング パネル) until the tip of the Shift Car hits the Chrome Guard Bumper (クローム ガード バンパー). Once the Shift Car is set, the user must hold the car and lift it up and down back into the Shift Landing Panel to finish the transformation sequence into Kamen Rider Drive, right before the Drive Driver announces "Drive: Type" (ドライブ：タイプ) and the corresponding Type used. The Shift Cars that are able to change Drive's Type forms can only be used until transformed.

After transforming with a Type Shift Car, the user has the option to switch between different other Shift Cars afterward. To do so, the user must turn the Advanced Ignition again, pull the used Shift Car out, rotate the selected Shift Car, and insert it back into the Shift Brace, repeating the lifting action used before. This would change the base tire from the Type, or any previous tire used before, and cause the Drive Driver to announce "Tire Koukan" (タイヤ交換) and then the corresponding Shift Car used.

If the Shift Car that is being used is lifted at least once, the user will be given a power boost, and the Drive Driver would say either the Type used if a Type Shift Car is currently in use (ex. "Type Formula" would be "Formula") or the second name of the specialized Shift Car (ex. "Hooking Wrecker" would be "Wrecker"). The amount of times it is lifted, the Drive Driver would repeat itself.

To initiate a finishing attack, Drive must turn the Advanced Ignition once again and press the Igniter (イグナイター) red button on the Shift Brace, which makes the Drive Driver announce "Hissatsu" (必殺) with a revving noise being looped. Lifting the Shift Car afterwards would then give Drive an exceeding amount of power, as well as cause the Drive Driver to announce "Full Throttle" (フルスロットル) then the corresponding Shift Car used. Drive may now release the power gained in any way he wishes, unless the Shift Car does not comply. This is shown when Shinnosuke couldn't utilize the Dream Vegas Shift Car's Full Throttle, as he didn't get a jackpot.

In order to have the Drive Driver cancel the transformation, Drive must remove the Shift Car currently placed in the Shift Brace and press the Igniter. Sometimes, after a victorious battle, the Drive Driver would say "Nice Drive" (ナイスドライブ) as a compliment to the user's great job.