Sorry for that mistake it's Andrew again the bike is a pedalease just wondering if you have any ideas what to do i have started putting money in to it would be great if you have any experience with those bike s thanks so much

Hi it's Andrew i have a please mountain bike it power's on the control switch but soon as i twist the throttle or pedal it makes a thump in the moter and won't turn and i turn the wheel it feels like something is rubbing inside thanks so much