Does anyone own 400 series dual speed brushless motor

[vodka]

On the Crystalyte product list I can see a 400 series dual speed brushless motor (408/4011, 406/408 etc) and
also a 20A dual speed analog controller . Has anyone tried this thing yet

 

[rkosiorek]

yes. the motors have been available since before the millenium. of course people have tried them.

rick

 

[vodka]

and, any good?

 

[Drunkskunk]

its like getting 2 motors in 1 case, but you're stuck with thin phase wires.

There isn't really more torque in the lower speed motor, but it does give more efficancy and less heat under loads. More torque comes from upping the voltage

 

[dnmun]

you have to use the C'lyte dual speed controller too. most people avoid them imo.

 

[Drunkskunk]

you don't have to use that controller. Any controller will work.

all that dual speed controller does is add a switch inline to switch the motors. you can either mount your own switch, or just manualy swap the plugs.

 

[rkosiorek]

or you can use a relay controlled by a switch conveniently mounted on the handlebars so you can switch modes on the fly.

personally that is the best solution. killer vision for the speed freaks. 408/4012 mounted in a 20" wheel. crystalyte original 72V analog 40A controller. and 72V of 10C LiFePO4 batteries. modes controled via the aformentioned switch/relay combo. mount on a BMX frame. nice practical power. excellent grin factor. until you've tried it you won't know what you are missing. right ypedal?

rick

 

[dogman dan]

I just go the more bikes in the garage route. But I don't really have a need for both windings on one ride. Slow winding is for dirt riding primarily, though it would be great for a long trek to hypermile.

 

[rocketgsx]

I am running a 408/4011 dual tapped hub on my wife's e-bike and it is a great setup for our needs. She uses the 408 winding when just riding for fun and easily gets up to 29-30mph no pedal on flat ground at 55V nominal and 20Amax. Although I can outrun her on my hardtail mountainbike for a mile or two, she always eventually takes over, especially if there is a long slight hill to contend with. However, if we are going on an extended ride of 15+ miles, then the 4011 winding is much more efficient in the 17-20 range that we end up riding. The motor stays cooler and range is extended by over 40% typically (although a good portion of this energy savings is just due to the much lower wind resistance for sure).

Just out of curiosity, what kind of power would you guys think I am putting out when sprinting on my mountainbike at 35mph? Its a Gary Fischer Piranah with standard off road 26" tires and I weigh a little over 200

 

[John in CR]

Also, yes it does have more torque and lower rpm with the higher count tap. It's more copper and more turns, so more torque. At the lower count tap, the motor has a higher Kv, so higher speed, but less torque.

 

[Ypedal]

Some like them ( Me ) , some hate them( Justin from ebikes.ca !! lol ) ...

I find that they are great, for one they give you flexibility of flipping a switch to lower the top speed ( for novice riders, or newbs ) .. or they give you the option of upgrading to 72v and retaining a reasonable top speed..

I still have a bunch of these motors.