I am wanting to buy a e bike because my knees are getting worse and we have hilly areas so I just want a little help getting up those yet I want to get exercise too. I love the aventon Pace 500 because it is so comfortable but I had it at level one pa and I don't want that much assistance! I really have no interest having to go 20mph an hour or even 15-18 for that matter. I did see a you tube that says you can adjust the Aventon so it would have so much kick. Maybe I should look for a class 1 without throttle? But I do want to make it up the hills! Thank you for feedback.