What is the actual horsepower at the back wheel for a 2000 vs a 2009 model
No difference, how much do you need to ride around looking like you go fast even when you can not.
1999-2007 171.1hp 2008-2009 197hp
The 2008 Hayabusa puts out 194 horse power at the crankshaft, 160 horse power at the rear wheel. The 2009 model should put out similar numbers. See the article at the link below. Look about 1/3 the way down the page. The 2000 model put out 175 horse power at the crank shaft according to the article in the second link, 4th paragraph. This article did not list the rear wheel horse power. If you use the 18% horse power difference between the rear wheel and crankshaft with the 2008 model, I estimate the 2000 model Hayabusa put out about 144 horse power at the rear wheel. So according to these two articles, the 2008 model puts out about 16 more horse power at the rear wheel over the 2000 model. The numbers should be similar with the 2009 model.