I would have had to attach an accessory bar for the throttle. Part of that was due to the shape of my bars (they are rather thick and the tops have a wide flat area) that wouldn't allow the throttle to be attached to a non-standard bar. I don't think I miss it. I haven't faced a hill yet that wasn't made significantly easier with pedal assist level 4. If it's steeper/longer than that... I don't know that "throttle mode" is going to get you up the hill. You have to remember, these are still bikes - not motorcycles. I think the mid-drives are the best climbers. However, I rode a 350 watt mid-drive up a 700' hill in Portland. It was a pedal assist only bike. I was still tired at the top of the hill... but I didn't have to walk the bike (which is what I would be doing even on my sub 20 lbs carbon road bike.) I think my 50cc scooter would have struggled up that hill.



So, while BionX has a throttle, I elected not to go through the hassle of dorking out my bicycle for something that I now realize I would never use. My bike is pedal assist only. I can easily change the pedal assist level or regenerative braking level on the console from the tops of my bars (where I spend most of my riding time) with my left thumb. I can do that using heavy gloves or even mittens. I can reach the console without moving my hands from the riding position. However, I have to move to a different position to use my brake levers... so, changing assist level is actually easier than braking. Thus, it's not a big deal.