Abrubt Acceleration.....

[Dsmall2112]

Attn

Can the ebikes like (Magnum) be toned down when it comes to initial acceleration ?

I test rode one, and at the slightest start off, I popped a wheely !
As well as making a tight 360 degree slow turn around, it lurched me around that turn.

Can the control of bikes like this be Tamed ?

Craig

Craig - was glad to find this thread, so thank you. I too was interested in responses given my recent purchase of ebike Magnum Premium II (with CS6 LCD display controller).

• I have tried the "Eco" mode option but that didn't really help with the initial "surge".
• What I have since learned (trial and error) that the throttle (lever) on my bike has much smoother acceleration curve than PAS. So (as newbie) from stopped position (or when I need smoother acceleration or "lower speed power") I use throttle to get going first, then begin pedaling to engage PAS once I'm ready.
• (Not Tested) On my bike, there is a "max speed" setting for the throttle (4 options: 0, 3.7, 12.5, 20 mph) so I have set throttle to 3.7 max MPH. Haven't tested this yet, but hoping the throttle will max out at 3.7 smoothly (ie uniformly over the lever's range) to avoid that "initial surge". Once tested I will reply to forum with results.
• I will undo these options once I'm comfortable, but I wanted to share in case this helps anyone. BUT if I ever let someone a test ride (with no PAS experience) I'll advise to use throttle first (and may limit the throttle 3.7 max MPH settings).

I didn't know about the various types of cadence sensor technology, so thanks for that. Too late for me to get a torque PAS, which sounds like it might have been smoother.

 

[hoggdoc]

For tight maneuvers, you learn to ride with a finger wrapped around the brake lever. Usually, the motor cutoff switch in them will inhibit the motor before the brakes engage.

Other actions beyond that or in addition to that include shutting off the pedal assist before engaging in a tight maneuver or shutting off the controller completely .... depends on how your console works. To me, all of this is as normal as downshifting into low gear when coming to a stop on a regular bike, so one can start off again in a low gear.

Your wheelie must have occurred with the throttle? My 20" folder has much of my weight over the rear wheel and can wheelie if I'm leaning back and engage the throttle too fast at a stop, but it's only a little jump. I just have to roll it on slowly.

This is one problem with cadence systems. Unless they included a really low power PAS 1, most PAS 1 levels will boost you over 10 mph quick, so it can be hard to amble along with friends on regular bikes (unless I cut power).




I

I have Himiway All Terrain and experienced the same as you until I tuning using the settings in the display. A suggestion is to use your throttle to start then start pedaling. I find that I control fine motor power with the throttle, your setup may not work the same.

 

[hoggdoc]

Attn

Craig - was glad to find this thread, so thank you. I too was interested in responses given my recent purchase of ebike Magnum Premium II (with CS6 LCD display controller).

• I have tried the "Eco" mode option but that didn't really help with the initial "surge".
• What I have since learned (trial and error) that the throttle (lever) on my bike has much smoother acceleration curve than PAS. So (as newbie) from stopped position (or when I need smoother acceleration or "lower speed power") I use throttle to get going first, then begin pedaling to engage PAS once I'm ready.
• (Not Tested) On my bike, there is a "max speed" setting for the throttle (4 options: 0, 3.7, 12.5, 20 mph) so I have set throttle to 3.7 max MPH. Haven't tested this yet, but hoping the throttle will max out at 3.7 smoothly (ie uniformly over the lever's range) to avoid that "initial surge". Once tested I will reply to forum with results.
• I will undo these options once I'm comfortable, but I wanted to share in case this helps anyone. BUT if I ever let someone a test ride (with no PAS experience) I'll advise to use throttle first (and may limit the throttle 3.7 max MPH settings).

I didn't know about the various types of cadence sensor technology, so thanks for that. Too late for me to get a torque PAS, which sounds like it might have been smoother.

There you go the throttle is the answer. I would not set you max speed that low, just do as you have learned with the throttle

 

[AHicks]

I have no idea where you'll end up, but I would encourage you to TRY about ever adjustment you have available. Some may help, others may be a step backward, but you'll never know which if you don't try! Just don't make the mistake of not making a note of where you started - to allow you to come back to the original settings easily!

 

[ElevenAD]

a Magnum that can pull wheelies! buy that bike now!