New crystalyte motor - G series

General Discussion about electric bicycles.
miro13car   1 MW

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Re: New crystalyte motor - G series

Post by miro13car » Sep 11 2013 12:34am

Ambrose, others
Any progress on using G motor ,
did you do any testing?
or you just gave up to lace it into any bike wheel?

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ambroseliao   100 kW

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Re: New crystalyte motor - G series

Post by ambroseliao » Sep 11 2013 1:29am

I am waiting for spokes to fit the motor into a 26" wheels.
http://www.ebikes.ca/ is the best!

TidalForce M-750X, Tidalforce S-750 with Crystalyte HS3540, 1x TF iO-X Cruiser. E+ 1000W hybrid bike. ebikes.ca DrainBrain & Cycle Analyst meters. GoPro HD Hero2 camera. Bosch Fat Packs, 37V 10Ah LiPO pack. Turnigy Multistar batteries
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Remember LiFEPo4 HVC is 3.65V and LVC is 2.7V

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Re: New crystalyte motor - G series

Post by Gregor » Sep 24 2013 5:38pm

Have you had a chance to lace the 26" yet--if so, can you tell us the lenth of the spokes and the ERD of the rim? Did you use "straight pull" spokes?

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spinningmagnets   100 GW

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Re: New crystalyte motor - G series

Post by spinningmagnets » Jan 03 2014 7:17pm

a Russian build with dual G-series

http://electrotransport.ru/ussr/index.p ... #msg183069
Image

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ambroseliao   100 kW

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Re: New crystalyte motor - G series

Post by ambroseliao » Jan 03 2014 9:03pm

Gregor,

Ilia at ebikessf.com has the spokes to lace the G motor into a 26" wheel.
Gregor wrote:Have you had a chance to lace the 26" yet--if so, can you tell us the lenth of the spokes and the ERD of the rim? Did you use "straight pull" spokes?
http://www.ebikes.ca/ is the best!

TidalForce M-750X, Tidalforce S-750 with Crystalyte HS3540, 1x TF iO-X Cruiser. E+ 1000W hybrid bike. ebikes.ca DrainBrain & Cycle Analyst meters. GoPro HD Hero2 camera. Bosch Fat Packs, 37V 10Ah LiPO pack. Turnigy Multistar batteries
My blog: http://ebikerider.blogspot.com
Remember LiFEPo4 HVC is 3.65V and LVC is 2.7V

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skeetab5780   10 MW

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Re: New crystalyte motor - G series

Post by skeetab5780 » Jan 06 2014 3:47pm

I wonder how that dual G series works, you can tell by looking at the bike the tires have different diameters. One may be pulling the other

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The Stig   100 kW

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Re: New crystalyte motor - G series

Post by The Stig » Jan 06 2014 7:13pm

skeetab5780 wrote:One may be pulling the other
Thats a common misconception people have about 2WDs

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Re: New crystalyte motor - G series

Post by skeetab5780 » Jan 08 2014 11:55am

The Stig wrote:
skeetab5780 wrote:One may be pulling the other
Thats a common misconception people have about 2WDs
please go on...?

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The Stig   100 kW

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Re: New crystalyte motor - G series

Post by The Stig » Jan 13 2014 4:14pm

With throttle control like the current infineon controllers (its actually RPM control)... any time the throttle is not being held at exactly the speed of the bike (so maybe like 90% of the time) both motors would either be:
effectively off
-OR-
be pushing at their max torque (depending on speed, and set phase and battery current limits)

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skeetab5780   10 MW

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Re: New crystalyte motor - G series

Post by skeetab5780 » Jan 14 2014 7:07am

So if RPMs matter, then overall diameter would matter... wouldn't it? also your saying 10% of the time there are problems? what type? Those motors were so weak even in a 20" wheel I cant imagine its beneficial to have 2 rather than 1 nice rear hub.

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The Stig   100 kW

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Re: New crystalyte motor - G series

Post by The Stig » Jan 14 2014 2:58pm

Ok before i answer your questions, first off: I agree a big rear motor might be better instead of 2x G series or in addition to a front G-series. BUT this is different subject.

I didn't mean to imply that the other 10% would be a problem, maybe more of an inconvenience. I think up to about 10% of the time (worst case scenario with different over all diameter or windings in motor etc) it could be sub-optimal. I think it would be tolerable and maybe even unnoticeable most of the time. As long as torque is kept down to reasonable levels in the front. Well tuned front suspension helps.

The inconveniences might present themselves when the rider was to hold the throttle at a certain level corresponding to the speed of the bike. Then one motor would turn off before the other and you would essentially feel the bike "getting up to speed twice" or backing off the power twice as each motor turned off at different RPMs. Even at low speeds this wouldn't really be a problem as long as torque was limited to low enough levels in the front motor.

I always like to encourage people playing around with 2WDs, I think it would be really cool to see the gradual development of 2WD bikes.

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skeetab5780   10 MW

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Re: New crystalyte motor - G series

Post by skeetab5780 » Jan 14 2014 3:52pm

thanks for the info! I like to wheelie way too much to use a front motor. Tried one out and I was done with it after 1 trip around town :)

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Re: New crystalyte motor - G series

Post by atom1025 » Feb 11 2014 9:05pm

Picked up the motor ambroseliao was selling.

I put it on my wifes udk500 cargo bike. Running 57v it pulls 20amps from a stall and tops out at 18-20mph.(need to verify speed on CycleAnalyst reads right, but it feels like 20mph)

While its perfect for my wife it leaves me underwhelmed. Suppose if you like tame its cool. But all the design flaws would not have me recommending it to anybody.

I'm running 20" rim, I can't see this doing well in a 26".....

Pros
stealthy size
Very quite while cruising

Cons
Grunts loud from stall(probably normal but this is my first DD)
Slow

All in all I'm happier with the outcome then I thought I would be.

Guess I'm just letting you guys know that there is one running, let me know if there's questions.

Adam
Bashed Synergy Cycle runs
1800w peak, 31mph tops.

2004 Cannondale Jekyll with a MAC 10
15s 8ah lipo (2100w peak) 31mph tops.

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The Stig   100 kW

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Re: New crystalyte motor - G series

Post by The Stig » Feb 11 2014 10:46pm

Thanks bro! How many winds did you get in that motor? I don't know if there is a choice or not with these motors...

atom1025   100 W

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Re: New crystalyte motor - G series

Post by atom1025 » Feb 11 2014 11:03pm

It has to be the G2530. If it was the G2540 it would go 26mph according to the simulator.

Adam
Bashed Synergy Cycle runs
1800w peak, 31mph tops.

2004 Cannondale Jekyll with a MAC 10
15s 8ah lipo (2100w peak) 31mph tops.

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spinningmagnets   100 GW

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Re: New crystalyte motor - G series

Post by spinningmagnets » Mar 29 2014 8:39am

Earlier in this thread, Justin mentioned the 9-Continents FH 154, if you are interested in a small DD hub, apparently they are in production (along with the Conhis DD): http://www.9continent.com/nkt/products_show.asp?id=100

My interest in small diameter DD hubs is as a candidate for a non-hub drive that provides the motor with at least 3 gears. On that subject, I'd also like to add that Justin at ebikes.ca has begun restocking the 40X series, as a replacement part for the new stoke-monkey kit (available in two Kv's): http://www.ebikes.ca/shop/ebike-parts/mstoke08.html

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