That's a pretty awesome picture. My (now long-time ex) wife had a Spencer replica helmet back in the day for when we used to cruise around on my Interceptor.
If you look at the photo there is also a marker at 19,000rpm which is what the NR revved to in it's last version. It could be that it produced peak power at 19K but they could run it to 21K but no more. I was looking at the fairing and the rev counter/temp. gauge layout too, looks identical to what's on the bike Spencer is riding.
Mr. Daytona! My very first helmet was a white Shoei that I plastered with Troy Lee Designs stickers to emulate Scott’s Screaming Chief design. He’s a class act.
The bike of defending WSBK champion Raymond Roche the year Polen went over to Europe and beat the brakes off the entire world and finished 150 points in front of runner up Roche enroute to his first WSBK title
