I have ridden a bike with gears for 40 years, so that's not an issue, though I don't use all 21 - maybe 3 or 4. My trike has one speed, but it's okay as I don't ride it far and this side of town is flat. I do need hand brakes. If I ride with coaster brakes, I beat up on the handle grips wondering why the bike won't stop. I'm on my way outside to put air in the tires of my old bike to see if I'm correct that I can ride one after several years off. I keep telling myself I have two friends that ride every day and both are over 90. One circles the lake, which is over 8 miles and the other rides everywhere, plus distances.