The Denso W27EMRC is a Honda recommended alternative.
I'd personally still use the NGK as I have always used them, but Honda wouldn't recommend them if they were crap! (Well, I doubt they would unless there was a lot of money in it!! )
Mind you, I think the NSR charging system is Nippon Denso... so I'll leave you to make your own mind up on that one!!
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Andy.
NSR-WORLD.COM
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