These bikes are a piece of crap! We received bike@ 2 weeks before x-mas. The throttle{plastic] was broke. I called them and they said they would send replacement before x-mas. 2 days before x-mas i called them and they said they had no record of my call and told me I had to send them a picture of broken part. I did this and they promised part by 1/5/2011. Now its February and i am still waiting.