It's possible that the gearbox survives because of the little wheels?
I think there is probably a reasonable correlation between power and speed trap readings. Tony Hunt's Force is fitted with a supercharged Haybusa and provides a sort of benchmark.
Looking at last August's Gurston Down (first speed trap) and Shelsley meetings (finish speed),
Code:
Tony Hunt 115 115
Tom New 111 122
Trevor Willis 112 122
Groves/Ranson 134 144
Trevor has a lot more go this year, but is having transmission difficulties. Tom's Shelsley best was a bit of a one off, he was more usually at 115ish. Tony's relatively poor Shelsley is probably related to handling difficulties in Top Ess (check out his Dunn video on StreetFire).
There's a huge gulf between 115mph and 134mph, I don't see what you can do to the bike engine to bridge it., especially given the relative friendliness of the NME and the overall effectiveness of the GR55 chassis.
Hopefully we'll get some more good data over the next two meetings, and I'm looking forward to seeing Graeme out again, especially at the Gurston and Shelsley dynamometers...
Paul