What happens if Ryder Azadi uses his ability to add one to the maximum speed of an airspeeder taking it to speed 4?

You just can't. There is no speed 4.

Yes it's similar to recon 3 you can't go higher.

On 11/23/2019 at 2:36 AM, Tortorific said:

What happens if Ryder Azadi uses his ability to add one to the maximum speed of an airspeeder taking it to speed 4?

Then at that point your airspeeder has reached ludicrous speed.

You've just gone plaid!