Honda Express NA/NC50 ring set

Matthew Scholtens /

I have looked through the various forums looking for a posting on where to purchase a replacement sent of rings for my 1980 Honda Express NA50. I am a bit confused by the different terms that are used. I think I found a set of rings from and, but I am not sure. There are STD and 1.00 sizes among others. I have a stock bike. Do I also need to match manufacturers to my original piston? I think there are two companies, NIPPON and TEIKOKU.

If you can shed any light on me as to where and what size rings and if I should get a new piston that would be great.

Thanks for straightening me out.

Matthew Scholtens

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