I have a 20 inch fat tire trike which I mounted a 1000 watt front hub motor to it with a 48 volt, 20Ah battery, but I have 1 problem it does not want to go straight it keep pulling to the side. If coasting 2-3 miles per hour it is OK but when you throttle it up to 8-10mph. it keeps wanting to go almost in circles. I already checked rear axle alignment and headset but still it doesn't want to go straight any help would be appreciated. Thanks, Zee.