So, Let me say this is a really great scooter. Many may complain but I assure you it is because they have very limited knowledge about these things. First let me say I purchased it off this listing for $249.00 so it you see a ridiculous price listed, better wait or shop elsewhere. The best thing to know about this scooter is that if you know how to operate a screw driver, it can become anything you want. This is why I specifically chose this scooter. I did not know the level of skill progression my son would achieve and how long it would take him to achieve it, nor did I know what type of accelerator or speed would be acceptable to him so I needed something modular that I could modify to his liking. This razor has unlimited after market parts and upgrades available for it and there is no end to what you can do with this scooter. Fastscooters (who is on Amazon), sells almost anything you might need. My son loved this thing but it didn't take long for him to want a better throttle and more speed. So, I started by upgrading the throttle and the controller and also put him a speed dial so I could adjust the speed for safety depending who rode it. The kits are specifically made for this scooter so it was all plug and play and worked out brilliantly. I also put in the LIPO4 10ah batteries available on amazon and holy moly what a difference. He wanted more speed so I upgraded the motor which was very inexpensive and super easy to do with 4 bolts.. The thing is, all the 24 volt motors are basically 2500 rpm so no matter how powerful the motor is, the speed stays the same but the 350 watt motor upgrade gives MUCH more power for off road and gives you the power to upgrade the motor gear. So, I ordered the 17 tooth #25 gear (10mm shaft) and slapped that sucker on with a chain and we r now rockn and rollin! 22mph now!!! he is very happy! and I didn't need to buy another scooter and I can always turn it down with the dial. The problem with buying another scooter is that they are not kid sized for an 8 year old. so if you want something with more performance but sized for a kid, modifying this scooter is really the best option I have found. the only reason i gave 4 stars was because the led acid batteries it comes with are terrible. All the upgrade parts except the batteries were very cheap. Bottom line though, the specs of this scooter now exceed the $800 segway ninebot so....