[EricH]

Can you show me in the rules where you can't?

The only motors with restrictions on what can be used to control them are the CIMs and the Fischer-Price motors, both of which require a Jaguar or a Victor per [R50.a]. (Well, there are a few other restrictions, but they're on servos, the compressor, and solenoids.) Other than that, just about anything that's on the approved power regulator list in [R51] is fair game for use with motors.

Now, is it advisable? Not if you want varying speeds. If you only want one speed, then yes, a Spike would be perfect in terms of control. I can't speak to how long the motor will last, however; this is mainly because I've never seen a Banebots motor used with a Spike.