I purchased a dirt rocket for my kid 65 lbs. After he rode it less than 5 times, the sprocket stripped out. Customer service had me take it a service provider who replaced the wheel. The 2nd time my kid rode it, same thing happens. Obviously something wrong here. I call again, now customer service is accusing me of riding the bike. Refused to replace it, told me to take it to service provider again. Same story, he insinuated someone heavier than 140 lbs was riding it. Very upsetting. I couldn't get anywhere with this disreputable company... read full review »