Bike noise, creak, click, creaks, clicks, clicking, pinging sound - help

Rule out possible sources of the problem from the largest, to the smallest.

Assuming you did the above whilst unseated, you've ruled out the back end: saddle, seatpost, cranks, bottom bracket etc etc.

Indeed unseated for that very reason. I assume the noises absence with a different wheel locates its source on in the original wheel?

Sorry a page refresh has shown me the other replies. I have checked the valve lock ring, tried it tight and removed - no change.

The stem shows no visible damage, again the absence of the noise with a different wheel probably eliminates this.

I'm willing to believe its the nipples but the spokes are at a decent tension and I don't lube the nipples on my other wheels unless truing/building. How do I check/correct these.

Sorry this is now a long post.

Cheers