necodan, first thing you will want to do is figure out how much current your bike can take on the AC side.
From there you can select the charging cord that works for you. typically the J cords are universal, they will work with any J vehicle, and whatever the max AMPS the cord is rated at is what you can take AC. That amp rating typically is AC and DC.
With that being said, most 115 AC plugs are rated at 15 amps, fairly rare to find a gen use 20 amp one. that will give you at absolutely very best 1.8 kw of charge per hour.
if you can find a DC plug to put it in, that will well...double your AC rating. typically 240 AC plugs have a minimum breaker size of 30 amps. Your xx-50 in theory, IF the breaker is that large, will give you 50 amps of charge current at 240 VAC. The big question is, can your bike take it?
Or reworded, do you have to INVEST in all the expensive charging head and cabling etc if your bike, with EITHER will only take 15 amps!!
If you are looking at CCS plugs now - those can charge at a bunch of different rates, but REMEMBER, the main boss is YOUR VEHICLE. Just because my charger is rated at 100 amps, if YOUR bike tells it, I will only take 15 amps MAX, guess what you are getting?
If your tesla charger supports J plugs then it should support your bike as well. Given most tesla's are designed to take a LOT of amps in, some of them can take almost 80 amps AC, if you plug your bike into it, it should not be a problem.
J-1772 is a universal standard, if your tesla puts out "J-1772' Power, it should work in any device you plug it into that takes that plug.
Aaron