Bad experience, stay away of these guys. I was an early backer (December 2017) for a complete ebike, eager to support a young start up and convinced that the product would have been great. Waited for a year of continuous delay and a lot of lies - never offered any explanation, communication was very bad. I was offered a replacement of a bike in July 2018 when they realised that shipments from China was messy and delayed again, then the offer disappeared, then it reappeared for unknown reason. I got the bike in December 2018; it came without the pneumatic tyre (although mine was a complete ebike and not just the kit) plus various stuff missing for which I had to provide at my expenses. I had to pay somebody for assembling it, which of course concur to the final price. First three weeks were ok, then the battery started to switch off suddenly. I did all the reset as suggested, added the Hall sensor as suggested, I thought I was too ignorant to understand how it works so again I paid somebody for checking the product and I was finally told the product was faulty. Avoid using it in winter, as suggested by oine of the support people because temperatures can affect performance to discover it was not true. Then in March I started having troubles going uphill, basically the motorhub drags me back and not only i have no support in pedaling, I am taken back and risked injuries three times. I contacted the support, received it in the form of a skype call in which we fully reset the battery (the guys helping were very kind) but as supposed the issue is somewhere else. I wrote back telling them that the problem is still there and asking to have a replacement, and since then no reply. I offered to pay for the courier because at this point of almost 800 euros of investement (ebike+upgrade+missing bits+bikeshop fitting) I cannot just give up, as for me it is a lot of money. Again they ignored me. So, they do not want to change the product, although they are liable, probably they try to let the warranty elapse for avoiding the cost of substitution. As I see on the forum that a lot of people is ignored, I am collecting info for moving into legal measures (btw, if someone has any suggestion, please share it). Stay away, apparently even the previous company (panda) had many troubles about money and refund. Definitely not a serious company, you just waste time and money.