How dou you get rainbow wing in pokemon silver?

Answer 1

Talk to the man in the pokemart in Pewter City, he'll give you the silver wing.

Answer 2

Enter the radio tower and make your way up. It will take a long time due to
the sheer number of Rockets you face, but the path is incredibly simple.

When you get to the top, you?ll find who appears to be the director, who was
kidnapped, but is in fact, an impostor. He?ll battle you. Defeat him, and
he?ll tell you that the real impostor is in the Goldenrod City Tunnel. He?ll
also give you an Underground Key, needed to reach the director.

Head to the Goldenrod City Tunnel, and use the Underground Key to open the
door to the east. You?ll fight your rival again in the next room, but he
doesn?t put up much of a fight. He has five Pokemon from level 28-32. After
beating him, beat the Rockets closeby, and flip the switches in this order:
left, center, then right. Work your way down to the door in the south-east and
battle another Rocket. Enter the doors. Fight more Rockets in the next room as
you work your way towards the center of the room. When you get there, you?ll
find the real director. He?ll give you a key needed to access other areas in
the Goldenrod Radio Tower.

Go back to the Radio Tower, and head to the third floor. Open the door on the
right of the room, and head upwards once again. Battle all the Rockets, and
you?ll find the two Rocket Executives you and Lance beat earlier, on the top
floor. Beat them both, and Team Rocket will disappear. The director will
return and then give you either the Rainbow Wing (if you?re playing Gold), the
Silver Wing (if you?re playing Silver), or the Clear Bell (if you?re playing
Crystal).

Answer 3

You have to talk to an old man in Pewter City.

Answer 4

It's been like 2 years but I think you talk to some old guy.