I think razor bot has a weakness, what if his bite path is blocked.
for example if the rival robot has spikes around it longer then razor's mouth, or if it is taller then razor's mouth.

moreover, it would be wise to place blades to the side of the rival bot to prevent front collision into the mouth of razor, while tackling.

also, I do not know the limit to razor's bites but if it's low it would be wise to use a light fast robot against it.

Twisted Evil