Bought from NCY in February 2008, road registered in California.
Thought needed a road legal dual sport bike and magazine tests
Renthal twin wall bars moved forward
KTM hard parts step seat
Enduro Engineering shark fin/rear disk protector, clutch saver and exhaust guard
Hard parts quick release plastic skid plate replaced by hard parts alloy skid plate replaced by EE alloy skid plate
Hard parts / Cycra pro bend handguards and Bonz mounts
Michelin mousses
JD jetting kit
De-smog including muffler de restriction
14/48 gearing with hard parts / supersprox rear sprocket
Hard Parts fuel screw
F2 scram manifold and bulls eye carb divider
Removed final screen from silencer
Enduro Engineering stiffer fork and shock springs (.48 and 8.4 respectively)
Trail Tricks stage 1 suspension revalve
F2 un-shocks front and rear
Hard Parts fork bleeders
Baja Designs rear light with shorter modified plate holder
Sicass rear LED blinkers and smaller light switch
Dirt Tricks cam chain tensioner
F2 magnetic oil fillers and float bowl plug
Hard Parts rear brake reservoir extender and quick release rear brake pin
Enduro Engineering axle pullers
Chain, sprockets, Brake pads, Bearings, Reliability
Strong engine
Good handling when suspension sorted out
With few changes it is a real dual sport legal off road racer
Oil consumption
Cam chain tensioner (fixed 2010)
Starting (Cam/ADC fixed later)
Suspension (2009 much better)
Rear blinkers and light/number plate mount
Airbox sealing (improved 2010 a little)
Handlebar clutter, big light switch
Gearbox drops out of gear sometimes
With stock high gearing, lean jetting and EPA stuff not really ride-able off road
More information on XC4 evolution of 2008 and onwards range of KTM models can be found here.