Thanks for all your feedback and suggestions.
I agree that Sentinels could be a solution, but IIRC Sentinels can only be used in packs of up to 3, can't they?
With Rough Ridres, you can use a swarm of up to 9 .... wouldn't that be a sight? 9 of these little bugs swarming over the battlefield, closing with the enemy and engage them in close-combat?
Anyhow, since I never really play I don't really have to worry *lol*
But somehow I still have the idea that someone else might like my idea or design and try to build it himself and use it in an actual game, so I may as well think about it some more.
I actually dig the idea of the driver holding a lance, or having it stored on the side, but this is something I need to look more careful into, as I think the current width of the bike makes it rather hard to hold the lance outside of the wheels (without getting tangeled up)...
I agree with the Inner Geek, that those little bugs are really small and agile vehicles that could easily avoid most obstacles. I just added another rail at the bottom, to protect the bottom part of the vehicle, that should do it.
I am however still thinking about adding a armour plate at the front...
@TSINI - here you can see, that the rail is actually mounted on the inner wheel (that remains stationary while the outer runs around).
Last night I added two pedals (from this image they look quite croocked, which they really aren't).