Bintelli is the absolute worst company I have ever delt with. I purchased 30 karts from them and it's the worst investment I have ever made. They pride themselves on saying I bought karts 30% less then the next kart company but when it comes down to it there more. All the hardware is junk every bolt nut washer. Go to bintelli junk on Facebook and you will see the pictures and videos. I wish someone would have put theses reviews out before I bought them. Please beware of these crooks. ONCE YOU PAY BINTELLI WALKS AWAY!!!!!!!