This company's after sales service is one of the worst I have ever come across. The RC which was sold had a one way bearing which seized after a couple of pulls on the starter cord. Their so called fault finding correspondence went round in circles with them not wanting to admit any liability as far as parts were concerned. We even sent a video of trying to start the RC with the pull cord not retracting. Being an engineer it was obvious what the problem was even though I had no experience with RC's. We bought the new part from ebay and the car engine now starts. After asking for a refund for the price of the bearing, we were told that because we didn't purchase it from Nitrotek, they wouldn't refund the cost of the replacement part. Bearing in mind that we spent 3 weeks following their so called fault finding and eventually losing patience, their excuse not to refund us didn't come as a surprise. Avoid this company if you expect reasonable after sales service.