The bikes

[ShadowOfTyranitar]

Mach Bike-trainer-Flip 2 coins. If both are heads, search your deck for a trainer and place it into your hand. If both are tails, search your deck for a pokemon and place it into your hand. If 1 is heads and 1 is tail, search your deck for 1 basic energy and place it into your hand. Shuffle your deck afterward using one of the previous effects.
Uncommon

Acro Bike-trainer-Search your deck for 1 energy card and place it into your hand. Shuffle your deck afterward.
Rare

 

[HYPER EEVEE]

Arco Bike is to good you sould make it a supporter, because it doesn't say basic energy!

 

[Pidgeotto Trainer]

Acro Bike needs "basic" in the text or else its broken.
Mach Bike also should have basic energy text.

 

[Tego]

Acro Bike needs "basic" in the text or else its broken.
Mach Bike also should have basic energy text.

If it did, it would be identical to Energy Search from Fossil/Expedition.

 

[dkates]

The point is, if a Trainer that searches for a Basic Energy no questions asked is considered balanced enough to print (more than once), then one that searches for a Special Energy has to have a drawback. Hyper Eevee's suggestion would do it.