I STRONGLY recommend staying away from all GoBoard USA products. There is no warranty to speak of. If anything happens more than 24 hours after delivery, the customer is on his own. I purchased a GoBoard XL, and it worked for less than 2 weeks of moderate use. Now it won't move and all I can get from GoBoard USA are rude emails. They say they only consider covering issues that they are contacted about within 24 hours of delivery. I now have to decide whether to guess which parts are required and spend more money trying to fix this thing or to just cut my losses at over $500. Buyer beware.