What gear when powering thru the hills?

[Ward P]

Look where the shift cable goes into the derailleur. There is a a small round adjuster with nubs on it. You want to turn that barrel adjuster counter-clock wise 1/2 turn at a time and try it. The shift cable has stretch a little and the spring on the derailleur is pulling it into the next smaller gear.

Wrong kind of bike me thinks. My Busa doesn't have a rear derailleur

It's a new mod, allows for quick change of gear ratios when dragging, track days or salt racing. All the rage in Pakistan !