Im with 2fast.
My speedo shows about 4-5mph above whats displayed, but on stock size tires.
On the heat issue, I have his heat shields but have yet to install them.
Been trying to figure out where most of the hot air comes from before I do so I can make a very crude before and after assessment. It would seem so far, most comes out the upper area around the tank/fairing opening (by the petcock for instance).
I also think part of the heat issue is the fact that the pipes are open to most areas inside the fairings. There is a LOT of heat radiated off of them into other parts and the air coming thru the radiator passes over them as well before it exits, usually near your legs.
I have had a set of headers ceramic coated, but have yet to install those as well. Been a busy Summer so far. They are coated inside and out, and should keep the heat in better, and have almost zero radiated heat (things around them wont get hot just because they are close), so it would seem, in theory anyway, they would reduce the heat quite a bit.;
Im hoping there is some relief from that once I get Brians heat shields in place and the header mounted.
I dont expect a miracle, just something a bit more tolerable.
I hear all the time the excuse that its 1000cc and it makes heat and its got to go somewhere...but Ive had bigger bikes that put off less heat thru the fairings, so its more of a heat management issue than the size of the engine. And the argument that its a larger fairing only holds for the upper part. My RF900 was every bit as big down low as the C10 (even had the same type of plastic between the fairing and the tank/engine!), but never roasted my legs.
ZX11 didnt either, and THATS a big, powerful engine.
I used to go for a ride in the Summer to cool off, but a ride on the Connie has the opposite effect.