I've noticed a lot of repeat questions in the original "best street-tard" thread, and also that a lot of people don't want to read through all 47 pages. I've gone through all the posts in the previously mention thread, and I think I've summed it up fairly well. I've anyone has any more info to ad, go ahead, but please don't fill it up with "which is better, drz vs. husky 510".
KTM LC4 640, 3000 mile oil changes. Great for commuting. They require (relatively) little maintenance, and are not "pure race motors" at all.
KTM 625, excellent bike, excellent components, excellent handling. There is no reliability drawback over anything else, it's fast and fun. The 625SMC is arguably one of the best street-tards. KTM does all the hard work for you and sells them street legal from the factory. Their only drawback is that they vibrate. Bad. Some people think it shakes too much for street riding.
MZ Baghira, very comfy. "I've put 12,000 miles on it with only oil changes every 2K, and 1 valve adjust. I love the bike, it fits my needs, and if I had to do it again, I would get it again. That said, it is heavy, but I feel that weight is not that big a deal on a street bike." Weight on these bikes is very easy to drop, to a point. For example, the stock muffler/cat is about 15 lbs. "The power of the motor is really good stock, I dropped 1 tooth on the countershaft, still goes 70 comfy on the hwy, but lofts the front in 2nd with ease now."
Husky 610, extremely reliable as a daily commuter. "I recommend buying the 610 if you plan on riding alot on the road. This is my commuting vehicle. I have some nice tight twisty farm roads on the way to work - almost no traffic (25 miles with 3 stop lights total). This is perfect for me, I can't imagine anything better."
XR650R, big, fast, powerful(ish), reliable, little maintenance, etc. While certainly heavier than more specialised machines, it is hard to beat for heavy use, day in day out, commuting, track days, trail riding, 500 mile days, etc. Dependable, all kinds of parts and info available. They are excellent bikes, very stable at speed and have all the potential you want to make out of them. "I ride a XR650R, and typically ride with sport bikes. We ride between 250 and 450 miles in a day, on twisty mountain roads. I have no wind protection, and stock seat foam. I have a range of 150 miles on a 4gal tank with 15/40 gearing, and a top speed of 119. I've done 1900 miles in a span of 9 days, two of them over 400 miles. Put a little over 7K on the supermoto last year, so I guess it's the riders butt and back that regulates how far you can ride a supermoto!" It's also been proven to do great off-road. The XR650R is a good choice, if you're kick start skills are up to par.
XR650L, Bombproof. "The XR650L is probably the most comfy bike you can ride in the city." Big seat, long suspension. "It's not too fun on the highway, though. I stick mainly to B roads." Heavy, old technology, air cooled dirt bike w/ sloppy suspension and low HP. Very dependable. "A good bike, smooth motor(for a thumper), bulletproof, and I can take it on pretty long rides, maintenance intervals are just like any other street bike and parts availability isn't a problem." There is pretty much no difference (performance wise) between an XR650L and DRZ400SM. The XR's an ancient design that is well outdated and its right on track with a more modern 400.
XR400, small, light, reliable. Not incredible power, but a fun bike.
DR650, "I was riding my DR650 142 miles round trip a day for a year, all year. 80/90mph most of the way. I got no complaints with the DR." "Dependable as hell and easy to maintain. Also handles well." "My DR650 is my 21st bike I've owned! I'm getting older so I wanted a good reliable bike to chase my son around the yard on his 50 and a fun way to and from work. No, I dont think I could race it, but these bikes are a blast on the street!! Reliable,pulls great wheelies and great looks!"
DRZ400SM, I would say that a DRZSM would be a perfect bike for a new rider. "Cruises comfortably at 75-80 mph and will even cruise at 90 mph if I want to put up with the windblast." As you probably know the drz motor is bullet proof and needs very little maintenance. Enough power to have a ton of fun, but not too much. However, it does have it's drawbacks. "The DRZ is a great little bike, but it's slow, it's heavy, it needs more HP and another gear." "If you like riding the streets carving the corners and lifting the front wheel on every exit you'll want the hit of the real SM bikes." If you're a modder, then the DRZ will do you well, but you'll need to spend some time and $'s to do so. A stock DRZ-E is about the same power as a DR650, the DRZ-SM has less because of different cams, base gasket and CV carb. You can easily mod it from there to have a lot more go than a DR650 can, but it will take some time and effort of course. If you don't like to do maintenance, and just want to plow around on the street, the DRZ is the right bike for you. It's a great everyday bike, and for blasting around town. So you have to ask yourself, and answer honestly, "what am I going to use this bike for?
KLR650, excellent mileage munchers, but too heavy and soft to make a supermoto. Forget the KLR. Great bike but not motard material. Just too large and heavy.
KTM 950SM, won't mind long distances or hooliganism, if you can afford it!