[R0man]

No experience with NC-123 Plus, but I've treated all my bikes with ACF-50 at the end of each riding season. I can highly recommend it.

 

[R0man]

Are you applying with an HPLV sprayer, the aerosol, or the squirt bottle?

I don't have a garage, so HPLV is unfortunately not an option. I've been using a squirt bottle. This means an excessive amount of product used per application but it's still fine with me considering that I do it once a year.

 

[R0man]

What parts of the bike?

Everything below the seat avoiding breaks, foot controls and tires.

Here is a good how-to video