First, I'd like to start off by thanking Matgaz, Rider777, and vwprostock for their help and willingness to engage me in PM's to help me sort out what bike I should get. On to my long winded version of a review. I've been into offroad vehicles for some time but they have always been 4x4's. I built up a 80 Series Land Cruiser for expedition style travel with some minor rock crawling. I later moved onto a full tube framed rock buggy (40" tires, LS motor). I have mountain bike experience and lots of snowmobile experience. This past spring my 10 year old daughter asked if she could get a dirt bike because she wanted to DRIVE in the dirt instead of just ride. Some discussion took place and I got lucky, in April, bought a CRF125 Big wheel for her and got a KLX140G for my wife, got all the associated ATGATT. My other daughter was just fine with driving the 4x4's, no need for 2 wheels. The only motorized 2 wheel machine I had ever ridden was a Honda Aero50 in college, so, I spent a ton of time on the KLX140G. It was ridiculously underpowered and small for my 6'2" frame at 210 lbs, but it did allow me a nice safe way to practice skills, shifting, braking, gunning the hills, downshifting, riding higher and faster gears for flowing track. I rode single track, sand, hills, dirt roads, and rocky mountain trails up to 11,000 ft. Surprisingly, it was pretty capable as long as you planned ahead and wrung its neck. Suspension and ergonomics were killing me and I was likely killing it, I just kept telling myself I was getting faster and stronger by staying on it. I could do over 40 miles of single track on the "Jalopeno". Don't get me started on my rides on the 125. I rode with some friends and got to try out a 2016 Sherco 300SEF 4t, 2013 GasGas 300 2t, 2015 Beta 350 RR-S, and a 2016 KTM 500EXC, and a 2016 Beta XTrainer. My favorites were the Beta and the Sherco. I live in the high desert of New Mexico at 6,000ft and spend a lot of time at altitude up to 13,500ft on mountain passes in Colorado. I wanted EFI and enough grunt to keep going at elevation and to run 55mph on roads. I liked the idea of a street legal dirt bike for connecting trails. After riding the Beta 350, I knew the 390 was the ticket for me. 500 seemed like to much for my newness, and I didn't care if I was the fastest guy between "those two trees" or on the open roads. I waited for the 2018's, put in a BYOB the first day it opened. Added radiator and hand guards, and had the springs changed out front and back for my weight. Then the wait was on. It arrived shortly after the middle of October. I looked the bike over, checked all the bolts, moved some wires and made sure the hose clamps were snug. I checked the sag with the help of my girls. Static was 30mm and race was 100mm. After reading all the threads on ThumperTalk, I could not believe I hit the 30/100 ratio without changing a thing. Felt pretty scared on a new bike with a lot of power. The test bikes I rode, with the exception of the Sherco, were more on dirt roads and not single track, and never for a long ride. I headed out on my first ride for 40 miles of single track, flowy, whoops, with some sand wash runs and hill climbs. I was so focused on not killing myself, I was exhausted immediately for the first third of the ride. Soon, I settled in and wasn’t having to think so much, and then I got tired again for the last third of the ride. Overall, it was a great ride! I noticed the size and the suspension of the 390 the most. Soaked up the ruts and bumps so much better than anything else I had ridden. I could go faster into things and it just plowed right through. The ability to ride in second with the 15/48 gearing and still just throttle up the steeps was amazing. Got my second run a few days later, another 40 miles of single track with some ridge running, sand washes, slickrock, and loamy dirt. I felt much better this time and my friend who coaches skiing and mountain biking said he could see my confidence and skill rise throughout the day. I definitely felt comfortable on the new bike. Still mostly in second gear, got into third some. Seems to be fine lugging or revving it out. I seem to be most comfortable lugging it. Did a dual sport. 68 miles, left from the house on pavement, rode 40 miles of single track, dirt roads to get to the highway, 55mph, then back onto single track to my house. Very cool. Loads of fun. My fuel light started to flicker as I got home. Guessing the 80 miles per tank estimation is about right. All in all, got over 10 hours on the bike in a few weeks, had a few drops but no major get offs. Did the first oil changes and post inspections. Bikes are so easy to work on compared to 4x4's and buggies. Hope to get more riding time before it gets too cold, but it is snowing tonight in the mountains. No concerns about the bike, running flawlessly and is exactly what I wanted. Someday, I’m sure I’ll whip it up to see what it really is made of, but for now, I'm please with having loads of fun, learning a new skill and getting out in the dirt. I'm lucky to get to ride desert single track right from my home and I'm looking forward to getting into the high country in Colorado next summer. Thanks Beta Section on ThumperTalk.