I've googled myself to a stand still.

So I'm trying to find a good deal on the shorty plugs and caps, as I'm putting a rear cylinder head on the front.

On this site it lists the R5300A plug, yet when I work through the honda part number ot NGK's current plug I end up with R7282A.

When I look up the plug caps on the NGK site, it lists different caps for the two plugs above TRS1225 vs TRS something else).

Can someone please unravel this for me? Which ones do I need?! What's the difference?!

I am also going to make the wild assumption that I can get away with doing this only on the front cyclinder and running the standard plug on the rear. So long as I use the correct heat range/jetting this shouldn't matter?

urgh.

Please help me unravel the mystery. It would be much appreciated.