Grindor, Highwire, Sureshock unite to form: Perceptor

"Seek your true power."

Allegiance: Mini-Con

First Comic Appearance:
They were seen on the cover of TF Armada #1. However, their first actual appearance wasn't until issue #3. 

First Cartoon Appearance:

Although they look ordinary, these three robots are keys to the mini mission of all the Mini-Cons. They combine into a robot, showing the strength of teamwork. Their capabilities continue to grow over time, but their real power is in making others discover their true potential. The Autobots & Decepticons see the unlimited power hidden beneath their innocent forms and struggle to possess them.

Below: Highwire transforms from dirt bike to bot

Sureshock: Scooter to Robot

Sureshock, robot mode
(another angle)
Sureshock scooter mode (another angle)