You just need to give it to a pokémon. It will double the Effort Values (EVs) it earns during the battle but halves its speed.
use a macho brace, you noob.
1st. Go to the Gym in Viridian City 2nd. Stand Where Giovanni stand 3rd. Use the Itemfinder 4th. There you have the Macho Brace
Trade the man in goldenrod city for a machop. The machop is holding the macho brace.
i got the macho brace by trading for the machop in the department store in the city with the radio tower. he was holding it.
Here's some good advice give macho brace to Pokemon that normally will be really fast gible is probably not one of those Pokemon to raise its speed back up use Carbos.
Pokerus + Macho Brace gives an EV yield of 4x normal.
There isn't a Macho Brace of Iron Island. You can have one from a boy in Pastoria City if you show him cerain pokémon (varies with version).
You get in Pastoria city and in the house north of the pokemart will be a bugcatcher who asks to see all burmy forms show him and you will obtain the macho brace
Nimbasa city
After defeating the Winstrate family.
No at least none that i know of
It is where Giovanni is then use the itemfinder.It will show 4 stars instead of arrows.