I was sold a faulty electric mountain bike by tredz. I plastic guard that protects the battery shook loose and was lost whilst riding. I've since been told a replacement part would be sent to me with a redesign brought about by the shaking loose design flaw. it has been over six weeks now and the bike is still unusable. tredz know how this bike was part of my fitness program as I am fighting cancer. fact is they don't care. do not buy from tredz, go to a real bike shop and talk to a real owner... or pay the price later like me... £5400 for a bike that is unusable.