OK, Hopefully somebody at Honda is reading this... Here's my dream replacement for the 650R: Modify the existing CRF-X, something like this: 100mm bore x 76mm stroke = 597cc Longer rod, taller cylinder, longer-skirt piston 11:1 compression ratio Stainless intake valves Roller Rockers w/ screw-tappet adjusters 6-speed transmission 1.5 qt. engine-side oil capacity, low in frame as mcdrz suggests 200-watt lighting coil EFI 10,000 +/- RPM limit The weight added by the 6th gear, bigger crank, taller cylinder, added oil capacity and heavier flywheel would add about 8-10 lbs. Honda should be able to make something like this just as dependable/ long-lived as the current 650R. I hope that's the direction Honda takes. I'd buy one in a heartbeat!!