FRP Mini Dirt Bike GMB100 Max, 99CC Gas Powered Mini Bike 4-Stroke,for Kids/Adult, W/LED Headlight, Goggles, Gloves and Neck Gaiter,Up to 28 Mph, Weight Support Up to 220 LBS (Green)

First and foremost: This is not a Honda or Yamaha... if you are not mechanically inclined and own some hand tools, you will probably be quickly disappointed, so move on. If you want a high quality bike that you will not have to repair, maintain and customize, go buy a new Yamaha PW50 for $1500.If you like like tinkering, customizing and enjoy a bargain, read on.Overall, this little bike is a good value. Like all inexpensive Chinese powersports products, it is for the most part solid and reliable. The frame is solid with good welds. The engine is a Honda GX35 clone, parts aplenty. The plastics and controls are cheaply made and will break at some point. Replacement parts are dirt cheap and readily available. The clutch/chain drive is the same thing as many pocket bikes and bicycle engine kits, readily available. You WILL have to tighten bolts, add lock washers and fix piddly things.Initial impressions and suggestions:1. Immediately drain the oil that comes in it and replace it. Mine had fine metal particles from machining (They don't do a great job cleaning engine parts before assembly) I put in Mobil1 10W40 and will change it again after the first few hours of use.2. This little bike is way too fast for a beginner. The stock twist throttle appears to be adjustable, but is poorly designed and made and does not actually adjust. Replace it with a thumb throttle (with an actual stop screw to limit speed) for about $15 here on Amazon.3. Other reviewers had mentioned the rear sprocket loosening as an issue. I found the initial chain tension extremely tight, and not lubricated. Remove the rear axle nut and chain adjuster to get a straight shot at the socket head cap screws, remove them one at a time and add lock washers (and a drop of loctite) to each bolt to prevent this issue. Lubricate the main drive chain with some real chain lube.4. The gear reduction chaincase (from the clutch to the rear drive chain) has very poor lubrication from the factory (looks like very small amount of clear silicone grease). Remove the four small and two larger bolts from the cover and put a healthy amount of real chain/bearing grease on the internal chain and sprockets.5. Check the bike over after each use until you are comfortable that the little issues are worked out.I will update this review as we put more hours on it.

update: it has maybe 4 hours on the motor. Started right up after winter but stopped running after 20 min . Not it starts but won't move with the 50lb kid on it. This was a lot of money for what actually is a piece of junk. DO Not waste your dollars. Please learn from my mistake.First off please drain the oil after about 20 min of run time. The amount of metal flakes in the oil is unbelievable I changed it 3 times the first day. The chain was constantly falling off so pay attention to that adjustment. The pull start self destructed the first week. Now the throttle cable is too loose, it is not an adjustable throttle even though it looks like one. I will have to use some enginuity.10 yo enjoys riding it but he definitely needs a pit crew for repairs

The bike is great, it is so much fun to ride around and is plenty powerful. Can get it up to 40 with an upgraded pipe and governor removed with someone 150 pounds. It is also larger than you would expect for a “minibike” but can fit someone 5’ 10” very comfortably. The seat is very large and comfortable to cruise around on. My only complaint would be the throttle grips as they are plastic and have a knobby texture which can hurt leave marks on your hand and start to hurt if you are full throttling the bike for a long period of time. But it’s not an issue that wearing a glove or replacing the grips on the throttle wouldn’t fix. Overall the bike is a great buy and good value and is worth every penny especially compared to other minibikes gas or electric.

Great little mini bike but too small for my 12 year old grandson. Fits 6-8 year olds better.

My son LOVES it. He is 5' and he feels it is a little small, but it doesn't stop him from using it. His knees come up and he is just inexperienced at turning with his knees there. I saw a review where someone is 5'10" and was fine...so?There was an issue in the first day where the chain kept coming off, because the main sprocket was bent. I contacted the seller and had a replacement here in a week. No questions, no extra money. Unbelievably GREAT service! Good buy!

Love the bike, beside the feet rest being bent. I also didn't receive my proof of purchase, that's considered the title for it.. How can I get both, fixed without send the bike back. Already bought extra parts.. please help me!!!!!!

My Daughter loves this thing and so do.

Arrived with the gas tank cracked. They are doing zero quality control checks on these. At first glance when I got this I noticed the defects immediately. They clearly didn't even give it a quick look. They get them from china and ship them out to Americans without checking them first.Also, there are holes in most of the welds. Water will get in these holes and start forming rust. Then you go over a bump later and the frame will snap and break, resulting in serious injury.If you look at the reviews for all of the FRP products it is the same quality control (ZERO). This company should be removed from amazon, they are a sham.