Whats the bike in Terminator 2

[Born_2_Kill_83]

Any idea what the bike is in Terminator 2 that the T800 takes from the bar and uses to chase after John Connor in the drainage canal?

 

[Born_2_Kill_83]

Found it, its called a fat boy.

One thing that I never understood about Terminator 1, is how John Conor sends a protector back to save his mum but the protector is his dad?