I am working slowly on a Bike Squad to accompany my Attack Bike and here is the Sergeant's ride. I have used the fairing from a Chaplain's bike to mark him out from the rest of the squad (his power sword should do a good job of that too).
I intend to do 5 bikes at first, then maybe adding a further 3 later to a maximum squad of 8 plus Attack Bike (10 marines).
The other bikes are still at undercoat stage and I am curently working on the Sergeant himself. The other bases are done though, so they all matched perfectly.