I am older and a friend let me use his ebike, it has fat tires and 9 speeds. It’s a really nice bike. I like the fat tires better because I feel they are safer. I use the bike for exercise and have had really good luck with it. Since it has PAS I keep the level on 1 and that max speed is 8 mph. I always pedal it from 12 to 16mph when I hit a hill it slows to around 9mph. I use the throttle only to start out from a stop. This works our really well. Since in my mind I have the electric I ride the bike more often than I ever had with my regular bike. Just make sure that you have the tires inflated all the way. In conclusion I ride more now and hardly use the electric with fat tires so I guess I’m getting a better workout. He wants his bike back so I guess I have to buy one now.