So about a little over year ago I got broadsided by an SUV on my way home from work. Many months of rehab and recovery later I am back to normal but I can't say the same for my poor Ninja. I've had a lot of time to think about how I want to rebuild the bike and I've gotten the itch to try a dual sport. After reading through all the threads here on converting the 650 into something more dirt capable I decided to take the plunge. I started this last weekend by stripping the bike down and removing all the broken body work. Over the past few months I've acquired a full YZ400F front end and a R1 rear shock. I got the front end on and I'm starting to get a good idea of what this thing is going to look like when I'm done. Things that I need to sort out yet: Spacer for the upper bearing on the YZ stem - The upper bearing on the YZ stem is 28mm and no one makes a bearing that will fit the Ninja's upper race, so I'm trying to find a local machine shop that can make a spacer for me. Bore out shock bushings for the 650 mounting bolts - again, need to find a local machine shop that can do this for me New rear spring - from what I've gathered so far the stock R1 spring will be too soft for my girth. Probably source a new one from Canyon Racecraft unless anyone has another suggestion. Exhaust - the stock header and muffler where damaged pretty badly in the accident, so I'm scouring Ebay for replacements now. Anyone have any suggestions for aftermarket mufflers that are light, but not obnoxious sounding? Radiator - The original is bent from the accident and I'm very doubtful that it'll cool addiquately, so i'm hunting on Ebay for a replacement. Front wheel - I've got the stock 21" wheel off the YZ, but I'm debating relacing it to a 19". Never done a motorcycle wheel before, but if it's anything like trying to true mountain bike wheels, I may not have the patience for it. Headlight - this is giving me the most grief right now. I really like the stock Ninja headlight, as it has a really good beam pattern and was excellent for riding at night. I haven't had much luck finding solid information on aftermarket headlights. I want something that will really light up the road at night, as we tend to have a lot of deer around here. Any opinions and suggestions are gladly welcome. This is only my second bike I've ever owned and the first that I've done any real customization to.