Forum:Road synchron

"if this card is used for the Synchro Summon of a monster other than "Road Warrior", its Level is decreased by 2. If this card attacks, at the end of the Damage Step, increase its Level by 1 until the End Phase."

When it refers to "its Level is decreased by 2" does that mean Road Synchron's level is reduced by 2, or the synchro monsters? (ex. Can road synchron and speed warrior make stardust dragon?)