The total rise in a short time matters. For climbing from the Pacific ocean to the top of the sierra in one session, only mid-drives will do it without overheating. Because most are compliant with european specifications (350 W max) most will require major human input in a low gear.
I climb 15% grades in short runs with a 1200 w geared hub motor, at 330 lb gross & up. Because I only do that 1 minute at a time 3 times over a 3 hour ride, the motor doesn't overheat.
Direct drives like the crystal shed the heat much more effectively due to the windings being on the outside, but are highly inefficient on steep grades at low speeds. A 1000 w direct drive motor took about twice as many watt hours on my 30 mile run as the 1200 W geared hub motor.
well a throttle is not going to give you more power your legs and a motor will give more. the bike you tried has more torque then most bikes with a throttle. but I have found the gearing is not always best for hill climbing. but you should be able to get unto 20 mph with little effort.
throttle wont help you unless your legs are really weak. I climb 16 % grades on my Bosch bike without a problem takes some work but not too bad. anything less and its s not a problem. but I Dailed in the gearing as my bike is a 28 mph and it had too much top end.Do you have any suggestions for a bike with a throttle that could help? Something maybe like the Gazelle but with throttle?
ya and I found they tend to have too large of a chainring in front. rescue it a bit and they climb far better and use less battery.The gazelle t10 has bosch performance 4, which is pretty good, and a 36 rear sprocket, but bosch only allows a single front sprocket. Yamahas as the giant MTB models have 2 front sprockets, and some of the mtb models have a 48 tooth rear sprocket.
Agreed - it's Gazelle's choice of 11-36 gearing on the rear that's letting the OP down, not the Bosch or the OP's legs.The gazelle t10 has bosch performance 4, which is pretty good, and a 36 rear sprocket, but bosch only allows a single front sprocket. Yamahas as the giant MTB models have 2 front sprockets, and some of the mtb models have a 48 tooth rear sprocket.
ThanksAgreed - it's Gazelle's choice of 11-36 gearing on the rear that's letting the OP down, not the Bosch or the OP's legs.
I have the previous gen Bosch Performance Speed but my bike has 11 speed gearset that tops out with a 46 tooth gear. I usually don't even get into the lowest gear, but when I have it will climb a hill from a dead stop while I'm seated and the biggest problem is spinning out too fast. I do find that I have to have more forethought about what gear I'll need for a hill and get into it BEFORE I get bogged down. The Speed motor likes a pretty good cadence so it is not very forgiving if you find yourself in the wrong gear.
The Bafang Ultra is a torque monster and will absolutely throttle you up a hill no problem and you certainly won't have to pay as much attention to what gear you're in and so forth.