speed control and motor ??

[KrAzY-JATO #1]

can the slash xl-5 speed control handle a 13d fireball motor??

[!bungle]

It's rated to handle as low as a 15-turn 540-size motor or a 12-turn 550-size motor. Depending on how you gear it, it may still work, but you will be exceeding the design parameters and Traxxas' specifications. Try it at your own risk, in other words...