Cost: About $1,100 USD Weight: 45lbs/20.5Kg Seat Height: 16" (40cm) Age Range: 3-5, but bike is rated to handle up to 220lb riders Where to buy? http://www.kuberg.com/p-2-start.aspx Been sorta meaning to do this for awhile but just haven't gotten around to it. I bought my 2 year, 10 months kid a Kuberg Start this past 2013 Xmas and think I've had enough time playing with it to give a summary. He just turned 3 and is riding it nearly everyday. About the Start: Kuberg suggests this bike for riders aged 3-5 but I can see where slightly older or slightly younger would be fine - really just depends on your kid and you know them better than I do. Mine is a little bruiser and has been bombing big dirt hills on his Strider for months now - without brakes! His mom is forbidden to come with us on these rides. I wouldn't have hesitated getting him the Start a bit earlier but Christmas is a good excuse to drop $1200 on your kid. A lot right? Well a new gas powered 50 is about the same price, but there's a huge market of used gas 50's will run you around $600, and you can sell it when he's outgrown it for probably about the same. These electrics are in short supply in the used market, and from what I've seen are usually only about $200 cheaper than new. So most likely its a small investment to get your 3 year old on a bike 2 years earlier than the other kids. Even if you plan to go with a 2x heavier gas bike, the lowest seat height I found was 19.1" on the PW50, so you're looking at age 4 or 5 being the youngest you can start your rider on a gas bike. Plus unless you live out in the sticks, your kid is gonna get a ton of seat time on an electric bike. Garage? Backyard? No problem. Living room? Eh maybe when mom is at the store... 1st question: Oset or Kuberg? I did a lot of research beforehand, and while the Oset is vastly more popular (indeed I was 100% sold on getting one), once I'd seen both bikes in person the choice was obviously Kuberg. The construction is of considerably higher quality and the cost is only $50 more. Don't get me wrong, the Oset is a nice bike and its good for the industry to have brands competing. I just personally felt that the Kuberg was a nicer bike for the money. Kuberg customer service is amazing. I've heard that Oset shares this trait so with either bike, rest assured that any issues or questions you have will be dealt with usually the same day. Packaging: Although well packaged, mine still came damaged. The box appeared to have been dropped repeatedly on the front forks. They were rolled over/rotated, but I was able to [mostly] straighten them. They don't travel very well but my kid is still too light to really make them travel so its not a huge concern just yet. Good thing too, as UPS is still figuring out how to handle my claim. The front wheel and front fender which aren't attached to the bike during shipping were also damaged but I was able to true them up to useable condition. Assembly: Handlebars and front wheel/fender pretty much sum up the assembly. I think I spent about 7 minutes once I'd gotten all the parts unbent. Assembling Ikea furniture is harder than getting one of these bikes assembled. Manual: Very good IMO. Instructions are very clear and cover basic maintenance and upkeep as well as tips for teaching a 1st time rider. Mods: Despite having ridden a Strider since he turned 2, my kid was pretty nervous about the Start at first. He'd putt around but didn't like that he couldn't touch very well and the throttle/braking was rather lost on him. On the lowest speed setting balance is a serious issue since top speed is only about 2-2.5 mph on flat pavement. On hills/dirt/grass setting #1 is useless. The bike just sits there and hums. Setting #2 is great for hills/dirt/grass but is about 6-7 mph on flat pavement. The speed selector button requires a 2 hand process. Its unlikely the little ones will be able to figure it out if you keep it subtle. Mine is a little problem solver and presses the button all the time trying to make it faster but doesn't realize it must be done in conjunction with the handlebar switch. The bike will remember the last setting used so you really won't have to mess with it. We did since we had to stick with #1 for pavement, then bump it up to #2 once we got on grass at the local park. Kuberg lists the top speed of the Start as 15mph/24Km/h. I stuck my 100 lb wife on it to test that on speed #5 and would say that's about accurate. Sustained use at max speed, you can expect about 1 hour of battery life for a child rider, less if your wife refuses to get off. At setting #2 (about 6-7 mph on flat concrete), we ride about 0.5 miles to a park, tear up all over the soccer field and some small grass hills for about an hour, and 0.5 miles home. The battery is usually around 60% full after that and is recharged in about an hour. Anyway my solution was to make some training wheels until he got used to the power and controls. He's ready to remove them by now, so we're having chats about it every time we go ride. He gets his stubbornness from his mother. He also thinks its funny to try and ditch us. He'll take off on his strider and try to find a way to lose you. Obviously then, we got a remote cutoff switch for his Kuberg from http://www.3built.com. I went with the universal one that comes with a 4AA battery pack but it looks as though they have one that will run on a 24v system now. That's the cutoff mounted to the front of the upper battery (right side of pic), and the battery pack mounted to the rear of the lower battery. The charging plug is mounted under the subframe on the left side of the pic, directly above the motor. Its well protected during riding although it is in the most natural position to grab when you have to pick the bike up. Thankfully the mounting tab is pretty stout so I haven't bent it yet. And the remote: Weight loss: At 44lbs, the Start is still 11 lbs heavier than my kid. I found some info on converting it over to LiPo batteries for a 9.5lb or 23% overall bike weight reduction. Cost is about $200. Plus the batteries are smaller so they'll only take up the bottom half of the lower battery tray, thereby lowering the center of gravity a fair bit. Going to be doing that in the next month. Many thanks to the Oset owners for doing all the R&D to come up with a way to do this conversion. Also I'm thinking of hacking off the kickstand since its steel and not really needed IMO.