Hello I am new to the site. I see a lot of great information on here. Wonder if anyone can help me with an issue. I have a Himiway step thru Cruiser just purchased it in April this year. My right brake/rear brake on the handlebar is very hard to squeeze. It also seems to stick and when that happens the power stops to the bike and I have to manually pedal it. This has not happened to my left/front brake. Does anyone have any ideas on this. We have tried tightening and loosening the brake tension. I have seen several videos, but so far no luck. I think I have a defective brake shifter.??? May need to request a new one. Thanks!!