Coincidentally I was looking at the same bars on the same site last night.Still itching to install GP Shift, shorty levers and Rizoma top triple clamp...oh and a 45t rear sprocket.
The bike doesn't seem to have the power to pull stock gearing to the redline as it is, and I spend very little time in 6th gear on my local roads with the stock gearing. I'm hoping this will allow me to use 6th gear more, and also smooth out low speed 2nd gear riding.
It seems counterintuitive, but frequently, lowering stock gearing slightly can increase top speed on the track if you cannot increase power, and increase fuel economy on backroads. Now, if you ride on an autobahn your results will differ. :wink2:
Why not install the rapid bike racing or evo then you can really put power where you want it in your rev range.