Not happy with my recent 4 stroke engine kit purchased from Bikeberry. I assumed this kit described as "everything you need" meant everything I needed to convert my bicycle to a motorbicycle. I have a 7 speed cruiser. The extra wide crank that comes with this kit will not work due to the sprocket on the wide crank kit. This sprocket will only work with the chains designed for single speed up to 5 speed bikes. 6 speeds on up have a different chain. I know I must not be the only that has encountered this. Does anybody have an idea for a solution that will work? I really don't want to spend another $50 plus shipping for a fix. Thanks in advance for any replies.